M.D Psychiatry , MBBS
Hallucinations are apparently real perceptions or sensations that occur when a person is awake, but are actually formed by the mind. Hallucinations could be heard, seen, felt, smelled or even tasted. They can not only be threatening, but pleasant at the same time and could be linked to imagery, sensations and past events, including unrelated experiences. Generally, hallucinations comprise seeing objects, hearing voices of people who are not present and the feeling of crawling under the skin. Due to the hallucination usually there is change in patient behavior, as they are responding to hallucination, like: muttering to self, smiling to self, irritability.
Psychiatric disorders (most common cause in clinical cases), like psychotic depression and schizophrenia
When you are high or drunk or under the effect of such drugs as lsd, cocaine, marijuana, heroin, pcp, to name a few
Epilepsy which involves a section of your brain known as the temporal lobe
Sensory issues, like deafness or blindness
Delirium in severe illness, which include kidney failure, liver failure, brain cancer and aids.
Dementia (visual hallucinations are quite rampant) and
Listening to voices when no one is around
Hearing different types of sounds, like footsteps, music, doors or windows banging
Seeing people who are not present in reality
Smelling a pleasant or foul odor
Experiencing bodily sensations, like movement of your internal organs or creepy feeling on your skin
In most of the cases of hallucinations due to psychiatric illness, patient do not accept they are ill. So, it become moral responsibility of family members to bring patient in treatment. Firstly, your physician needs to know the actual cause behind hallucinations. So, he/she will study your medical history, perform a physical examination and mental status examination. Following this, he'll study your symptoms. In some case investigations may be required to find out cause of hallucinations.
Treatment is given in the following different ways:
Treatment with antipsychotic medicines, in case hallucinations are due to psychiatric illness.
Treatment of medical or surgical issue leading to hallucination.