ShareNeo-Synalar is a topical steroid with an anti-infective. It contains a steroid, fluocinolone, and an antibiotic, neomycin. This combination medication treats itching, infections and inflammations of the skin due to skin conditions like eczema, allergic reactions, seborrhea, psoriasis and others. Neo-Synalar belongs to the category of drugs known as topical steroids with anti-infectives.