Your doctor may adjust the dose as needed. Children Use and dosage should be determined by your. Acute severe allergic contact dermatitis, such as that caused by poison ivy, should often be treated with a 2-week course of systemic corticosteroids. Most adults require a starting dose of 40 to 60 mg.
The oral corticosteroid is gradually reduced over a 2-week period, but a complicated reduction regimen is probably not necessary, given the short duration of systemic corticosteroid use.