Wisdom teeth are known to be the final molars to grow out and they complete the set of permanent teeth. They generally start to erupt during the late teens or in the beginning of twenties. 

In case of some people, there is a possibility that the wisdom teeth may never erupt, while others may even grow four and more wisdom teeth. 

Do all wisdom teeth create dental problems?
No, if a wisdom tooth has completely erupted through the gum and tissue, without actually harming the teeth next to it, it does not require to be extracted. But, this is only if the individual is able to clean and brush it thoroughly. The wisdom teeth should be properly examined and dental care is necessary to prevent any complications. 

When do wisdom teeth need extraction?
Proper oral care of the teeth will keep them healthy and clean. But there may arise a situation, in which the removal of the wisdom teeth is quite necessary:

1. In certain cases, the wisdom tooth may erupt at a weird angle, compromising the teeth next to it. This may make it difficult to clean the teeth thoroughly, thus resulting in the onset of bacterial growth and periodontal disease. In this case, the wisdom teeth should be removed as soon as possible. 

2. While the wisdom teeth grows out, it may happen that there is not enough space for it to grow properly. As a result the adjacent teeth may face pressure due to crowded teeth, leading to headaches, toothaches and jaw pain. It is best that the wisdom teeth is extracted in this situation.

3. In case a wisdom tooth develops a cavity, it should be extracted. 

4. An impacted wisdom tooth, that is, if it has only partially grown out of the tissue, should also be extracted before it can cause serious complications.

All About Wisdom Teeth

Hives or urticaria is an outbreak of reddish swollen bumps around the skin surface, formed mainly due to the body s response to particular allergens. Generally, the infectious bumps are of varied shapes and sizes and last for about 5-6 weeks. Although not a serious medical condition, hives can cause tremendous discomfort to the concerned person and affect his/her daily activities. Hives can be cured with a prescribed dosage of antihistamines or oral corticosteroids.

Causes of hives

Although the exact reason behind their formation is still unknown, researchers suggest that this disorder occurs as a response to involuntary histamine release by the skin blood vessels (that in turn, causes a leakage of blood plasma). Some other factors that can be responsible are:

Hives can occur due to insect or parasite bites.
Hives can also result as a side effect of painkillers such as codeine and other anti- inflammatory drugs such as ibuprofen or ACE inhibitors.
Excessive exposure to sunlight or high levels of stress (leading to high cortisol levels in the body) can also result in hives.
Intense scratching around the same spot can also result to hive formation.
Excessive alcohol intake can render you even more vulnerable to this disease.
Excessive intake of foods such as eggs, fish, nuts, chocolate and berries might also cause hives. Additionally, excessive consumption of certain food preservatives can also trigger the release of histamine.
Suffering from serious underlying medical conditions such as cancer, hepatitis or thyroid disorders can make you prone to chronic cases of hives (which might last for more than 6 weeks).
Symptoms of hives 
The symptoms of hives include, but are not limited to:

Appearances of several reddish welts around the face or arms which might cause a severe itchy sensation.
Painful and abnormal swelling around the mouth
You might also feel tightness in your chest along with recurring bouts of dizziness.
If not treated promptly after diagnosis, hives might result in life-threatening allergic reactions, such as Anaphylaxis (narrowing down of the bronchial tubes, thus causing significant breathing trouble) and auto-immune disorders such as rheumatoid arthritis.

7 Things that Can Cause Hives

One of the most important functions of the skin is protection. During this process, it comes in contact with various substances including chemicals, pollen, dust, and other pollutants. While it does protect the overall body from all these, there is some damage that is inevitably done to the skin through these exposures. Different skin and different bodies react differently to these, and while some may have no reaction, others develop allergies. This is also defined by how strong the person s immunity is.

Hives is one of the most common skin allergy responses. While it is not easy to pinpoint what causes the allergy or the hives, the causative agent can be nailed by observing patterns and excluding out some of the causative agents. There are a set of regular household and surrounding items that could lead to urticaria, and working around these can help pin down the source.

Origin: When the body encounters a foreign body, it produces what are known as histamines. When they are produced, the plasma in the cell leaks out, producing a red and swollen appearance. Hives are red, itchy, raised patches on the skin. They are seen in about 20% of the population. Hives are usually allergic in nature, implying that they occur when there is a foreign substance that induces an allergic reaction. Hives can appear either due to coming in touch with some substance or due to eating some allergy-inducing substance.

Hives can be acute or chronic. Acute is when the hives appear in response to an allergic reaction. These usually disappear in a matter of days to a week at the maximum. In some people, they could be chronic and can last for months together.

Treatment: Given that they are allergic in nature, managing hives includes a combination of immediate treatment as well as preventive measures. While most are topically managed, others might require systemic intervention also.

Once the hives have developed, the following can help in the relief of symptoms and prevent from spreading further. The redness and swelling will take some time to disappear.

Avoid tight-fitting clothes
Use cool compresses on the hives
Avoid warm or hot shower
Stay in a cooler room
Avoid itching the hives
Use topical moisturizer to prevent dryness
Use topical steroid cream to manage the inflammation
Take a systemic antihistamine or an injection of epinephrine if required.
While these help in managing the hives which have occurred, preventing is via the following.

Avoid the source once identified
If the source is not yet known, record when the hives are occurring
Manage stress and see hives appear much less
Increase moisturizer use
Keep an antihistamine handy so you can take it immediately in case of suspected hives. 

Urticaria (Hives) - The Best Way It Can Be Treated!

Hives, also called urticaria are swollen welts or bumps that appear on your skin suddenly.

They itch, burn and sting and can happen anywhere on your body. You can get them on your face, lips, tongue, ears or chest. And in size, they can be as small as an eraser to as large as a plate. They also form plaques and can last for hours or up to several days.

Types

Acute urticaria - These type of hives last less than six weeks. The most common causes are allergies due to certain foods and medications, or infections. These hives can also happen due to diseases or insect bites.
Chronic urticaria - Hives lasting more than six weeks come under this category. What causes them is usually more difficult to identify than what causes acute urticaria. In some cases, chronic hives are caused due to thyroid disease, hepatitis or even cancer. This type can affect your internal organs like lungs, muscles, and the gut. Thus, symptoms include muscle soreness, shortness of breath, vomiting, and diarrhoea.
Physical urticaria - These types are caused due to direct physical stimulation of the skin due to cold, heat, sun exposure, vibration, pressure, sweating, and exercise.
What causes hives?

Hives happen mostly due to allergies. Some of the common hive triggers are-

Certain foods, especially peanuts, eggs, nuts and shellfish- Fresh foods are more likely to cause hives as compared to cooked foods. Certain food additives and preservatives can also play culprits. Medicines like penicillin and sulfa- based antibiotics, aspirin and ibuprofen which are non-steroidal anti-inflammatory medications, high blood pressure drugs like ACE inhibitors, and painkillers such as codeine can also trigger hives. Other things that may cause it are:

Insect bites
Latex
Transfusion of blood
Bacterial infections, including urinary tract infections and infected throat
Viral infections- common cold and hepatitis
Pollen grains
Plants like poison oak and poison ivy
Sunlight
Cold weather
Pet dander 
If you wish to discuss about any specific problem, you can consult a dermatologist.

What Are Hives? What Causes Them?

Hives are a common allergic reaction that appears in the form of swollen, red bumps or patches on the skin. These usually appear suddenly and cause itchiness. In some cases, it may also sting or burn. Hives can affect any part of the body including the face, ears, tongue, lips and throat. Hives are usually small in size but may grow as large as the size of a dinner plate. In some cases, hives may also join together to form plaques.

Hives are caused as a result of the production of histamines in the body that make plasma leak out of blood vessels in the skin. These histamines are released as a result of an allergic reaction, exposure to chemicals, insect bites, sunlight or adverse reactions to certain medicines. There are four main types of hives:

Acute Urticaria: These hives usually last for less than 6 weeks. They are triggered by insect bites, allergic reactions to food, latex, medicines or by exposure to infections. The most common food items that trigger this type of hives are chocolates, nuts, fish, tomatoes, eggs, soy, wheat and milk. Aspirin and other medicines like ibuprofen, ACE inhibitors and codeine can also trigger these hives.

Chronic Urticaria: Hives that last for longer than 6 weeks fall into the category of chronic urticaria. IT is harder to find what triggers a case of chronic urticaria than it is for acute urticaria. Along with the triggers mentioned above, hormonal disorders, tumours, chronic infections and immune system disorders can also trigger these hives.

Physical Urticaria: Hives caused as a result of physically stimulating skin are called physical urticaria. This includes sudden exposure to heat or cold, sunlight, vibrations, pressure, exercise etc. These hives usually resolve themselves within an hour and only affect the part of the skin that has been stimulated.

Dermatographism: Hives caused by scratching or firmly stroking the skin fall under this fourth category.

Hives can also be genetic in nature. Some people suffer from hereditary angioedema which is a painful swelling under the skin.

Hives caused by an allergic reaction can recur and hence if you suffer from hives you should try and identify the allergen. This can be done by taking an allergen test in a hospital or by changing aspects of your diet and studying the results. Hives are usually treated with antihistamines but in some cases, steroids may also be needed. However, it is usually nothing to worry about.

What Are Hives? What Causes Hives?

If stressed, consuming certain food and medications can trigger skin rashes. This kind of rash is called hives. It is also known as urticaria. Anyone can be affected by hives, at least 20% of people are affected by hives at some time or the other in their lives. The itching could be severe or mild. It starts as a patch of scaly white skin that develops into red welts over time. To make sure the itching does not worsen, scratching, emotional stress, alcoholic drinks and exercise should be avoided.

Symptoms
1. Itchy bumps that are raised and are either red or flesh coloured
2. If the hive is pressed in the middle, the skin whitens this symptom is called blanching.
3. The hive formation can appear anywhere, disappear and then reappear somewhere else.

Common Triggers
1. Certain food like shellfish, eggs, peanuts and other nuts
2. Certain medicines like antibiotics, ibuprofen and aspirin
3. Insect bites or stings
4. Physical causes like pressure, sun exposure, cold, exercise and heat
5. Latex
6. Blood transfusions
7. Bacterial infections
8. Pet allergens
9. Viral infections like the common cold, hepatitis and infectious mononucleosis
10. Certain plants like poison ivy and poison oak
11. Pollen

Treatment
There is no distinct cure for hives. But you can control its symptoms in the following ways:
1. Antihistamines help in blocking histamines, which cause the allergy symptoms. Non sedating or low sedating Antihistamines will be mostly recommended by your doctor.
2. If episodes of hives are several, it may require limited treatment with prednisone. Prednisone will be able to lessen the symptoms.
3. If the symptoms get severe enough so much so that it swells up your tongue and you have problem breathing, then the doctor might prescribe an epinephrine. However, these symptoms can mean another thing, an anaphylaxis shock. Epinephrine is the only treatment for an anaphylaxis shock.

Prevention
If what caused hives to break out is figured out, then measures should be taken to avoid or eliminate the triggers.
1. Avoid eating food items that triggered the symptoms in the first place
2. If harsh soaps, frequent bathing cause hives, they should be avoided
3. Tight clothing should be avoided
4. If cold triggers hives, then wear warm clothing, wrap a scarf and do not swim in cold water.
5. Avoid sun exposure and wear sunblock
6. If a specific medication is causing the hives, inform your doctor.

All About Hives

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