Psoriasis is a hyper proliferative, autoimmune skin disorder. Despite the fact that many therapies are there in treating psoriasis, no single treatment gives complete and satisfactory cure. There are several therapeutic agents used topically and systemically but they have adverse effects. As an alternative for these drugs, herbal medicine have been widely used. These have better therapeutic value and have less side effects. Nano herbal drug delivery systems have a great future for increasing the activity and succeeding in dealing with the problems related with medicinal plants. Various marketed herbal formulations are available.