Hi.. An acute reactions is probably may be due to allergic reactions than a vasculitic or connective tissue disorder.. Steroid therapy is the treatment for both the conditions... Steroids help in controlling the condition and not in healing the lesions.. Healing should occur by it self aided by regular dressing and anti infection measures.. Hence it will take time to completely go away.. Investigation on the blood will help in deciding the cause for the conditions.. So follow with your doctors and wish that it was just to an allergic cause..