Psoriasis is clinically known as psoriasis vulgaris, the use of hormones to produce purple lines may disappear by itself. Purple lines refer to the purple-red, stripe-like, different-sized skin lines, usually formed under the action of glucocorticoids, resulting in a large amount of decomposition of skin proteins, the skin’s becoming thinner and thinner, and the capillaries under the skin are dilated and clearly visible, forming purple-red skin lines. Purple lines produced by the use of hormone drugs in patients with psoriasis of the common type can usually disappear gradually after stopping the drug, without special treatment, and the color of the skin can also gradually return to normal. Patients with psoriasis vulgaris need to use hormone drugs for a long time, should be carried out under the guidance of the doctor, strictly comply with the doctor’s instructions, do not stop or increase the amount without authorization, so as not to cause adverse reactions.