This might sound stupid, but I have been tapering down from methadone for about a month. I`ve gone from 40mg to 20mg in the past 2 weeks. Every day I go through bouts of itching,mostly when I go to bed. It`s like having chiggers or something. My arms, hands,feet,face itch and my head gets itching so bad I can`t get away from it until I take a Benadryl. I have to admit that taking 2 Benadryl before bed helps a LOT for the itching and even being able to sleep. There is no signs of a rash or anything and it seems to be everywhere at one time or the other. I`ve seen people get really high and itch a lot, so I`m just wondering if that is what it is.