Hypertrichosis and Topical Corticosteroid Use

An 80-year-old woman with mild dementia experienced hypertrichosis, or excessive hair growth, on her left forearm after using the topical corticosteroid betamethasone butyrate propionate for over 2 years. Initially prescribed for xerotic dermatitis, the continued application of this potent steroid led to thick hair growth and striae atrophicae on the treated area. The case highlights hypertrichosis as a potential adverse effect of prolonged topical corticosteroid use. Upon tapering the steroid, the hair growth decreased significantly. This case underscores the importance of proper prescription and patient communication to prevent such side effects.