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Rh course advisable and may tend to hasten the cure of alopecia areata. But in this affection impairment of health rarely seems to be a predisposing cause, and in many cases the patient is apparently in perfect health.

The uncertain result of treatment in alopecia areata should always lead to a guarded prognosis. In most cases a cure can be promised, but it is never advisable to specify any given time at which it may be expected. The younger the patient, the less the extent of baldness, and the more recent its development, the better will be the prospect of a speedy return of hair.