I have had poison ivy for the past week. I have treated it with everything I can find OTC, and although it is starting to dry up in some places, it is also still popping up in others. Most OTC treatments work for a short time, I cannot get relief from the itching for more that a couple of hour's. I am hoping you can tell me what to do in order to get a good night's sleep, away from the awful deep itching!