How is psoriasis treated?

Anti-inflammatories. Modulating anti-inflammatory medications such as corticosteroids and coal tar. Light therapy is also helpful for dermal symptoms.
Psoriasis treatments. How psoriasis is treated depends on how severe the psoriasis is. For mild localized disease, topical medications are most often used. For more extensive psoriasis, treatments with uv light can help. If the disease is widespread or difficult to control, internal medications such as Methotrexate or injections of biologics can help.
Dermatologist. The key is to initiate this conversation with your dermatologist since there are many therapies from pills to injectables to topical or steroid injections to uv therapy.