Hi, welcome to H C M. It seems that you are having HENOCHS SCHONLEIN PURPURA, also known as anaphylactoid purpura...... Henoch-Schonlein purpura is a particular form of blood vessel inflammation called vasculitis...... Henoch-Schonlein purpura frequently follows an infection of the throat or breathing passages, but it can be induced by certain medications..... HSP occurs most often in the spring season and frequently follows an infection of the throat or breathing passages. HSP seems to represent an unusual reaction of the body s immune system that is in response to this infection (either bacteria or virus). Aside from infection, drugs can also trigger the condition. .... Symptoms usually last approximately a month. Recurrences are not frequent but do occur. HSP is usually diagnosed based on the typical skin, joint, and kidney findings. Throat culture, urinalysis, and blood tests for inflammation and kidney function are used to suggest the diagnosis While HSP is generally a mild illness that resolves spontaneously, it can cause serious problems in the kidneys and bowels. The rash can be very prominent, especially on the lower extremities...... The treatment of HSP is directed toward the most significant area of involvement. Joint pain can be relieved by anti-inflammatory medications such as aspirin or ibuprofen. You take steroid steroid on tappering dose.....,cyclophosphamide (Cytoxan), azathioprine (Imuran), or mycophenolate mofetil (Cellcept) ma be taken if there is complication like glomerulonephritis..system.... HSP can have complications, which generally occur more frequently in children than in adults. The prognosis for patient is generally excellent. Nearly all patients have no long-term problems. The kidney is the most serious organ involved when it is affected. Rarely, patients can have serious long-term kidney damage or an abnormal bowel folding called intussusception. Some patients have recurrences of symptoms, particularly skin rash, for months to a year after the onset of the illness. I hope you may be satisfied with my answer. Still, you consult competent dermatologist. Regards. Dr. Ilyas Patel MD,DVD