There is no specific data on the duration of the acute phase of anaphylactic purpura, which varies from person to person, and is mainly treated with antihistamines, prednisone and other drugs.
Allergic purpura is a vascular skin disease, prevalent in children and adolescents, generally self-limiting, there is no specific data on the duration of the acute phase, but it is recommended to seek medical treatment as soon as possible.
Patients suffering from purpura should pay attention to rest, control diet and avoid upper respiratory tract infection. Antihistamine drugs such as loratadine can be used, and glucocorticoids such as prednisone and dexamethasone can be applied if necessary. If the effect of glucocorticoid treatment is not good, cyclophosphamide and other medications can also be used in conjunction with the treatment.
It is recommended to seek medical treatment as soon as possible, and use drugs under the guidance of the doctor. Meanwhile, allergic purpura can usually be cured in about 8 weeks, but there is still a probability of recurrence, and regular follow-up is needed.