Will I need antibiotics to treat my psoriasis?

Sometimes. Occasionally an uncommon form of psoriasis is guttate psoriasis which is small red patches scattered on the body. This can be assocated with a strep infection. It is important to treat with low dose antibiotics for weeks to eradicate the strep and the guttate psoriasis may go into remission for extended periods of time.
Usually not. Only if you develop a cellulitis (skin infection) will you need an oral antibiotics. Sometimes we treat psoriasis with topical antibiotic ointments.