In most instances, urticaria will improve with medications such as antihistamines. Low-sedating or non-sedating antihistamines are preferred because they are effective with minimal side effects. Frequently, your physician may try a combination of 2 or 3 antihistamines. Severe episodes of urticaria may require temporary treatment with prednisone or a similar corticosteriod medication.
If a causative factor can be identified, the best treatment is to avoid or eliminate that factor. For example, if a problem with a specific food is strongly suspected, then that food should be eliminated from your diet. This will require careful reading of packaged food labels and careful questioning about ingredients in restaurant meals.
Persons with physical hives should try to avoid exposure to that physical factor, if possible. Patients with solar urticaria should wear protective clothing and apply a sunblock when outdoors. Loose-fitting clothing will help relieve pressure urticaria. People with cold air urticaria should not swim alone, and those with severe cold urticaria should not swim at all. Cold air exposure should be avoided if possible; warm clothing should be used for unavoidable exposure to cold air. For people with dermographism, avoiding harsh soaps and frequent bathing will reduce the problem of dry skin, which can cause itching and scratching that can aggravate this condition.
If you have any more questions, your allergist-immunologist will be happy to answer them.