The treatment option of nail psoriasis depends on the severity of the disease and its type. One treatment for curing nail psoriasis is use of synthetic vitamin D which will slow down the rate at which the skin cells are dividing. Steroid medications such as cordran can also be applied on the nails. Fluorouracil is used as treatment for people suffering with nail pitting.  These all treatments are known as tropical treatment. Injections of corticosteroid are injected into the nail bed or matrix which will temporarily improve the conditions of the person affected by nail psoriasis. Phototherapy is also used as a remedy where the nails are exposed to ultraviolet radiations which will slow down the growth of the skin cells. Along with ultraviolet treatment, an additional light sensitizing medications such as psoralen is used. You can also opt for cosmetic nail repair. This is basically carrying out surgery of the deformed nails. If the nails are long and thick then it can be filed down. If nails suffer discoloration or are cosmetically deformed then you can apply nail polish or use artificial nails. If the nails are pitted then it can be polished and buffed.