The recovery time of mono purpura is related to the specific condition of the patient, which cannot be generalized and needs to be analyzed on a case-by-case basis. Simple purpura usually has an unknown cause and only manifests as mild bleeding spots on the skin or subcutaneous petechial hemorrhagic spots, which may result from an infection of unknown origin due to lowered immunity. If the patient with simple purpura is mild, there are no serious skin lesions, only scattered petechiae or petechiae can be observed on the skin surface, except for some patients will have a slight itching sensation, usually does not cause serious damage to the nervous system, urinary system or digestive system, etc. These mild purpura are less harmful and usually heal on their own in about 1-2 weeks and can be treated without medication. If a patient develops severe edema around the hands, feet or eyes, which usually takes 1-2 months to resolve, he should be promptly seen by a rheumatologist or hematologist and treated aggressively. Patients with purpura moniliformis should cut their nails short during the onset of the disease and do not scratch hard if they feel itchy, so as not to cause a significant increase in lesions and make itching more intense, which is not conducive to recovery.