I have bad poison ivy. Its down my arms,torso,neck, and some down my legs, my father was recently perscribed prednisone, 10mg each. How many should i take for my poison ivy rashes? It has been been a rash for aprx. 4-5 days. I have been taking benedryl and spreading poison ivy wash over the areas of ivy and then calymin.
. I read your question carefully, and I do understand your concern. Before writing about prednisone dosage I would like to give you some other advises alleviating symptoms:- Initially you might consider applying cold compresses of Burrows solution (over the counter) several times in a day (4-5 times) - Antihistamines which you are taking (Ben Chat Doctor.  The recommended dosage (for adult patients) is 40 mg daily for 5 days, followed by 30 mg daily for 2 days, 20 mg daily for 2 days, 10 mg daily for 2 days and 5 mg daily for 4 days. Sometimes the situation might be complicated with infection and antibiotic treatment is also necessary. I wish you a fast recovery and a good health