However, sometimes the condition may be resistant to treatment and persist for years. Hereditary angioneurotic oedema is an inherited condition which can cause nettle rash and swelling around the eyes, mouth and hands. It requires treatment by a specialist. Often it is enough to tell the doctor when, where and how you got the symptoms. Skin tests, a thorough examination and different blood samples can be used to confirm the diagnosis.
Antihistamines are the most commonly used group of drugs for nettle rash.
They relieve itching, reduce nettle rash from a severe to a mild outbreak and make the rash disappear. They may be administered as tablets or injections. Antihistamines that cause drowsiness are useful at night if one has trouble sleeping. In rare cases, treatment by a skin specialist with allergy restrictive medicine may be necessary. The treatment of hereditary angioneurotic oedema must be carried out by a specialist.