Dysesthesia describes the experience of an unpleasant sensation when touching things. It can manifest as pain, burning, wetness, itching and electric shock. It is caused by lesions in either the peripheral or central nervous systems and can be manifested in any area of the body that perceives touch, including the mouth. Depending on the severity, it can be incapacitating, and is also often found together with psychological problems.
Physicians classify dysesthesia by where on the body it is felt and what sensation it provokes. It can be caused by numerous conditions such as diabetes mellitus, alcohol withdrawal, multiple sclerosis and even chemotherapy.
Dysesthesia is still poorly understood and it is not certain whether it is a real physiological disorder or merely a psychosomatic one. Both physiotherapy and antidepressants have proven to be effective.