Purpura does not necessarily require allergy medication. For allergic purpura, it is recommended that allergy medications, including antihistamines, glucocorticoids, and immunosuppressants, be taken under medical supervision. Purpura is a manifestation of bleeding from the skin and mucous membranes, and there are many causes of purpura, such as allergic purpura, purpura simplex, idiopathic thrombocytopenic purpura and so on. For anaphylactic purpura, allergy medicine can be used, for purpura caused by non-allergic factors do not need to use allergy medicine. For allergic purpura, you can take oral antihistamines, such as phenylephrine, loratadine, etc., to inhibit vascular exudation and reduce the symptoms of purpura; use glucocorticosteroids, such as prednisone, methylprednisolone, etc., to inhibit inflammatory reactions; you can also use immunosuppressants, such as cyclosporine, etc., to regulate the body’s immune system, and to treat the serious condition of the patient. If the situation of purpura, it is recommended to seek medical advice in a timely manner, under the guidance of the doctor to identify the cause of the disease, and carry out the appropriate treatment, the above drugs need to be used in accordance with the doctor’s instructions, do not self-medication.