How effective are treatments for alopecia?
Most trials have been reported poorly and are so small that any important clinical benefits are inconclusive. Some of the skin treatments can have unpleasant side effects, such as itching or hair growth in areas of the body away from where the cream was applied. Oral steroids may cause serious side effects. Also, there is no guarantee that any hair regrown during treatment will persist once treatment is finished. None of the studies asked participants to report their opinion of hair growth or whether their quality of life had improved with treatment.
Alopecia areata is a condition that causes patchy hair loss. The size and number of patches and progress of the disease can vary between people. It can affect the entire scalp (alopecia totalis) or cause loss of all body hair (alopecia universalis). It is a relatively common condition, affecting 0.15% of the population. Although in many cases it can be a self-limiting condition, nevertheless hair loss can often have a severe social and emotional impact.