Antibiotics are viewed as a potential treatment for psoriasis because, in cases where low doses are administered either orally or with topical cream, it seems to help clear up skin affected by this condition.

It is generally accepted that antibiotics help to treat the symptoms of psoriasis more than attack the disease itself.  In particular, they seem to function as an anti-inflammatory agent.

Doctors hesitate to to prescribe antibiotics since the body can develop resistances to this kind of medication, thus decreasing its efficacy over time.  However they seem to be more open to the idea of using antibiotics to treat sever cases of psoriasis, or to counteract violent flare-ups.