By Gary M. White, MD

Folliculitis of the trunk is usually acneiform in appearance and may indeed just be acne.

One should also consider pityrosporum and staphylococcus as infectious causes. See folliculitis.


Multiple red inflammatory papules and occasional pustules are scattered on the trunk.


If possible, culture a pustule and treat accordingly. If the culture is sterile, consider acne (e.g., doxycycline 100 mg BID or minocycline 100 BID x 6 weeks) or pityrosporum folliculitis (10 day course of itraconazole 100 mg/day).

If these fail, a course of isotretinoin may be needed.


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