For how long would you treat Klebsiella aerogenes folliculitis of the face manifesting as a cystic lesion?

My recommendation would be to treat for 7-10 days. It is more typical to see gram-positive organisms causing facial folliculitis so I would choose an antimicrobial that has gram-positive coverage as well if possible, based on sensitivity. Additionally, I would ask the patient (if male, to change to disposable razors) and otherwise to change from any washcloths to single-use items when cleaning the face. Regarding the isotretinoin, I would suggest to first treat the bacterial infection. If it doe...

This is an unusual clinical presentation in an immunocompetent patient. Most reported cases of facial gram-negative folliculitis are due to pseudomonas or proteus. Draining a lesion large enough to be called an abscess is indicated, the benefit of unroofing the smaller lesions is less certain. I would treat with antibiotics for 10-14 days and would not consider adding isotretinoin unless there was concurrent treatment for refractory acne.