Why does PAIN occur? Understand the Mechanism of Pain

Pain is an unpleasant and distressing physical sensation caused by disease or injury, which induces hurt and anxiety in those suffering from it.
There are many different manifestations of pain, ranging from short term (acute pain) to long term (chronic pain). Other classifications include pain in the internal organs (visceral pain), injured tissue (inflammatory pain), nerves (neuropathic pain), etc.

The reason for the occurrence of pain depends on the cause and kind of pain being experienced. In most cases, pain acts as a warning sign that the body has been afflicted by a disorder of some sort, which may have arisen due to internal sickness or external wounding. Acute pains are generally cured on their own through rest or simple medication. Chronic pains, on the other hand, are more complicated in nature and the treatment requires more elaborate diagnosis.

The mechanism of pain

Pain is an extremely personal and subjective experience and affects each individual to varying degrees. The pain signals, which can arise in any part of the body, travel through the spinal cord to the brain along thousands of specialized nerves and nerve fibres. In the brain, it is processed in the centres associated with anxiety, emotions, memory, appetite, etc. Signals and pain inputs are then returned from the brain to the spinal cord, which may heighten or diminish pain.

In some cases, pain may also be induced by damage to the brain and spinal cord, which happens after a stroke.
A constant barrage of pain signals may cause the cells at the end of nerve fibres to become over-sensitized. This is known as 'wind-up' and is one of the most common causes of chronic pain that occurs even though the root of the problem has been identified and treated.

The causes and effects of pain differ from case to case depending on the signals received by the brain and its interpretation. It affects the individual's day to day activities and if persistent, can also have a harmful impact on mental health and psychosis. Pain is always handled, diagnosed and treated differently in all patients by drawing out the best possible solution to the problem.





Why does PAIN occur? Understand the Mechanism of Pain

A pain in the neck, both in the metaphorical and the literal sense of the term can be quite discomforting. If we look at it from a medical point of view, the pain in the neck could be a serious sign of something being amiss and so, keeping in mind the causes of such a pain is just so important!

Recognizing the Type of Neck Pain

A pain in the neck can manifest itself in a variety of ways. Also, it need not also follow the textbook definition of the term. As a matter of fact, tingling, tenderness or numbness can also be significant symptoms of neck pain. Another major symptom can be having difficulty while swallowing. This could be much more crucial than just a problem with the digestive system.

Many cases that doctors come across when a patient comes to consult about a pain in the neck are regarding an issue with the spinal cord. At in certain cases, it could be related to an issue with the muscles which are located in the area.

When a person has neck pain, he or she should think back and try to remember if he or she was in an incident where the neck could have possibly been the recipient of some sort of impact. This could be a possible explanation of the pain. Also, if there is a pain in the neck after an incident, it is better not to delay a visit to the doctor as the person is likely to be uncomfortable. The neglect is this condition can also lead to the problem getting progressively worse.

In some cases, a pain in the neck can even be congenital. A very good example of this is wry neck, or torticollis. When a pain in the neck is diagnosed by the doctor, figuring out what the likely cause is quite an important thing to do and should be the first thing which is done by him or her as the various ways to treat a pain in the neck vary according to the cause of it.

The problem of neck pain is very common as two third of the population suffers from it at some point in their lives. This does not mean that it needs to affect a person's quality of life. The right precautions and proper medication can make sure that his or her neck is not on the line!

Causes of Neck Pain and Diagnosis

Hot and Cold therapy is one of the most popular home remedies for any kind of joint pain or muscle sprain. In some cases applying heat therapy and cold therapy alternatively, can help relieve the pain while for others only one form of therapy is necessary. To understand what to use when, one should first understand the effect of heat and cooling on the body.

Applying a heat pack or immersing the affected limb in hot water improves blood circulation and makes the muscles more flexible. Thus, it can help relax a muscle and fasten the healing of damaged tissues. On the other hand, cold therapy or cryotherapy reduces blood flow to the affected site. This helps relieve inflammation and pain caused by it. It can also make the area feel numb by reducing nerve activity temporarily.

Types of Heat Therapy
Heat therapy can be categorized as dry heat and moist heat. Dry heat involves using saunas or dry heating packs to relieve pain. This is also known as conducted heat therapy. As the name suggests, moist heat involves the use of steamed towels, hot baths and moist heating packs. This is also known as convection heat therapy. Moist heat is usually considered more effective than dry heat.

Types of Cold Therapy
Cold therapy may be applied to a part of the body or to the entire body. This includes ice packs, coolant sprays, ice baths, ice massages and whole body, cold therapy chambers.

How to use heat and cold therapy?
The sooner heat and cold therapy is given to a person, the faster they will recover from their pains. Heat therapy can be given to a person for extended periods of time but when giving cold therapy, a person should not be exposed to a cold pack or ice bath for more than 10-15 minutes. Care should also be taken no to apply ice or a frozen pack directly on the skin as it can damage the skin and nerves.

When not to use Heat Therapy?
If the injury site is swollen or bruised, cold therapy is better than heat therapy. Heat therapy should also not be applied to an open wound. People suffering from conditions such as diabetes, dermatitis, deep vein thrombosis, vascular diseases and multiple sclerosis should also avoid heat therapy as these conditions can increase the risk of burns and other such complications. Pregnant women should also consult a doctor before using a hot tub or sauna.

When not to use Cold Therapy?
Cold therapy is avoidable for treating stiff joints and muscles. People suffering from poor circulation and sensory disorders should also avoid using cold therapy without a doctor s supervision. 

Hot & Cold Therapy - How It Can Treat Pain?

Lower back pain can be one of the most physically debilitating things that can affect you and limit your mobility. Even if the pain isn t that acute, it could still signal something deteriorating in your lower back. While oral medications, topical creams or sprays can help in reducing pain, there are other effective remedies you can try on your own. These will be handy when you have no medications at hand. One of these is the hot and cold therapy.

Heat therapy for lower back pain

Heat works well with lower back pain as it can dilate blood vessels and improve circulation within the tissue. This will help in circulation and also result in lowering the pain. Heat therapy will also loosen up other muscles in the area and help soothe sore areas which have been taking the burden along with the lower back muscles. Some of the techniques that can be applied are:

1. All day heat wraps: These are specially manufactured belts or wraps which wrap around your abdomen and keep tightness and pressure on your lower back as well as supplying heat.

2. Electric heating pads: These are mechanized heating pads which generate heat with electricity. You can place them under you back and then either sit or sleep with it positioned behind you. However, ensure that you don t keep these for too long as they could burn your skin.

3. Hot Compress with towels or hot water bags: Use a clean towel and heat it over a conductive surface and apply it on your lower back. You can also use hot water bags for the same purpose.

Cold therapy for lower back pain

Cold therapy uses the principle of constriction of blood vessels as well as slowing circulation. This will help numb the area and thus help relieve the pain. Some of the ways these can be administered are mentioned below.

1. Ice towel: In this method, soak a towel in ice cold water, wring it to dry it and then apply on your lower back. This will numb the pain without transferring the sting of the cold or damaging your skin.

2. Ice packs: Put about half a kg of ice in a plastic Ziploc bag and pour water over the ice to just about cover it. Push out the air out of the bag and then lock it. Use this ice pack with a towel to ensure that you back doesn't get wet.

3. Ice gel packs: These are ready made packs, which can be bought from medical stores and kept frozen to be used whenever you need it in order to relieve lower back pain.

Treating Lower Back Pain Using Hot and Cold Therapy

Problems with the arteries and veins present in the hands or legs can lead to vascular disorders. The arteries carry blood from the heart to other parts of the body in order to deliver nutrients and oxygen. The veins carry the blood back to the heart, after the nutrients have been used up. If these blood vessels of the arteries or veins become blocked or narrowed, it can lead to a vascular blockage.

A vascular blockage that occurs in the hands or legs comes under the category of Peripheral Artery Disease or PAD. These type of disorders are less common in the upper extremities of the arms or hands than in the lower extremities of legs. Few of the signs for the same are:

Pain and difficulty in movement due to decreased blood flow
Numbness or weakness of leg or fingertips
Sores on the toes or feet
If the blockage is deep, symptoms of redness, swelling, extreme pain or cramping can be experienced
Abnormal color changes in the fingertips
Ulcers or wounds that don t heal
Skin sensitivity problems when in cold temperatures
How can it be diagnosed?
The blockage can be detected by various methods namely-

Physical Examination   Your doctor may find decreased pulse at armpit, wrist or fingers, full veins, masses, wounds or gangrene.
Doppler or Ultrasound examination to determine the blood flow in the arteries and veins
MRI Scan of the affected area to pay special attention to the blood vessels
Cold Stress Test
Arteriography to show clear blood vessel details
Angiography to map blockages and narrowing of the arteries
What are the Risk Factors for Peripheral Artery Disease?
An individual is at risk for developing vascular blockages in the hands or legs if one or more of the following factors are present:

Smoking
Diabetes
Heredity Factors   A personal or family history of blood vessel disease
High blood pressure
High cholesterol
Aging   People aged above 50 years and older are more prone to vascular blockage
Can it be treated?
Treatments for vascular blockage can vary depending on the age, cause of the blockage, intensity and overall well-being.

Treatments can include:

Self-care   Reducing risk factors and making lifestyle changes to quit smoking, sedentary life or diabetes, blood pressure and cholesterol management can reverse symptoms of vascular disease.
Medications   A variety of drugs can be prescribed to lower the risk and progression of narrowing blood vessels or prevent blood clotting.
Interventional Procedures   Minimally invasive surgery like saloon angioplasty, stenting or removal of artery plaque build-up.
Surgery   If the blockage is severe, surgery may be performed to lessen the vessel narrowing, reconstruct the artery or tie it off, depending on the circumstances.

Pain in the Hands or Legs!

The toes and heels are the most load bearing components within your feet which take most of the weight when walking, running, exercising or even standing up. The heels are an especially vulnerable part of the body which can become painful either due to injuries or excessive stress put on it. Pain in your heels can also be a sign of other problems in your body.

Causes for heel pain:

1. Sprains or straining the leg: Exercising is one of the most common culprits behind heel damage. Wearing the wrong shoes over prolonged periods, which can cause your balance to be shifted and will lead you to put strain on your heels and cause pain. Falling or spraining during exercising or training can also cause heel pain.

2. Fractures: Stress or hairline fractures can occur even without impacts or trauma and also cause pain. It will slowly build up over time. In such cases, you should immediately consult a doctor and take remedial action.

3. Achilles tendon: A common cause for heel pain, the Achilles tendon connects the calf muscle to the heel. If this is torn or damaged, it can cause pain in your heel.

4. Arthritis: The deposition of uric acid crystals in parts of your body may result in arthritis; this is a fairly common cause for heel pain as well.

Treatments available

1. Change in shoes: Shoes play a major role in the development of heel pain. You will either need to change the shoes or adjust the heels to ensure that they are at an equal and comfortable height and keep your posture natural and balanced.

2. Foot supports: There are specialized heel supports and wedges, which you can wear with the footwear. These supports help redistribute weight from the problem areas and uniformly distribute it among the other parts of the foot. Heel cups are also another form of supports you could try.

3. Pain relief medications: Sometimes aspirin or ibuprofen may be required to numb and dull the pain, if getting through the day becomes difficult or you are in the middle of work.

4. Resting: Sometimes resting is the only medication you can take to relieve the pain as it can only subside once the underlying conditions are corrected.

5. Ice packs: Cold compress and cold therapy would definitely help in numbing the area and providing temporary pain relief.

It is however, advisable to visit the doctor if the pain persists and take specialized medical care in more complicated cases wherein the pain is prolonged.

Heel Pain its Causes and Treatments

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