I have a question what makes a person nose red, rub their nose scratch the scalp. Get acne , wired sleep patterns and twitch when laying down. Eyes are red and water. Complain about chest pain sometimes. One moment they nice and normal next irritable and at times withdrawan. Lick their lips, swallow hard, unbalanced at times.
The itching sounds to me like a histamine response that would be a typical response to opiate use, particularly of heroin, either smoked or IV'd. But other hard drugs can trigger tic-like behaviors as well. Some meth users, for example, exhibit obsessive behaviors ie picking their skin and/or hair. Not so sure about the red rimmed eyes, so I can't speak to that. The irritability and dramatic mood swings is, again, a common feature among users of harder drugs like meth and heroin. The withdrawals from both are different kinds of a living hell, and depending on the individual, can increase aggression, deepen depression, etc. Withdrawals drive you insane, so it could be that. On the flipside, you could be seeing the effects of heavy, chronic drug use, but that would never be my initial conclusion. See if you can broach the topic with them, and be gentle and supportive if this is the addict in your life. When we're using, we're like wild animals, and you should be careful and patient, to protect both yourself in an unstable situation, and to show the addict they can trust you.But keep me posted, I'm curious. If I were a betting man, I'd put my money on heroin use and subsequent withdrawal.Hope this helps ~f