Alopecia areata is the third most common type of alopecia. It affects about two percent of population during lifetime or one in fifty people. It is a very distressing condition but fortunately it often regrows. Alopecia areata was given its name because it tends to affect the scalp unevenly producing bald patches scattered throughout the scalp. The patches may be small or big and sometimes the whole scalp and even eyebrows, eyelashes and body hair can be affected.
Standard treatments speed up regrowth in patients with alopecia areata. If there is no spontaneous regrowth or if the standard treatments fail, topical immunotherapy with diphencyprone can stimulate hair regrowth in between 50 and 90 percent of patients with alopecia areata.