Hi, With your history it seems like your husband is having acneform eruption with few infected lesions as well. Ketaconazole is an antifungal which has no role in this unless there is a case of Pityrosporum folliculitis but still other antifungals are used in that case So I suggest him to visit a Dermatologist because he needs oral antibiotics like Minocycline or might need Isotretinoin Therapy depending upon the severity along with topical preperations containg benzoyl peroxide Also important is that a sudden acne eruption can be side effect of few oral medications like steroids,anti depressants,Painkillers etc . So he must stop those if there is any history