Does pityriasis rosea have to spread all over the body to heal?

Pityriasis rosea does not get better until it starts all over the body.
It is a self-limiting disease and its recovery is related to the strengthening of one’s resistance and the elimination of the virus from the body, but not to whether the rash is all over the body. Pityriasis rosea generally occurs on the body of adults, the lesions are most common on the limbs and trunk, the onset of the disease will lead to itching, pain and other symptoms, avoid scratching with your hands, so as not to scratch more and more itchy cause skin damage.
It is important to avoid scratching to avoid further itching and damage to the skin. Pay attention to your diet and exercise to strengthen your resistance to facilitate recovery.