I have been trying to find information about the hope for recovery for previous meth users, but there doesn't seem to be a consensus. Some sources say that meth causes permanent damage to the brain, while others are a little more hopeful and say some important brain functions might recover.

I used meth about fifteen times, which I gather isn't a lot in comparison to other meth users but is still a considerable amount. For a while I have felt paranoid and anxious and it has been more difficult to perform daily tasks and just generally think straight. Also, things I used to enjoy are not really that enjoyable anymore.

My question is, will I be able to have my brain back? If so, how much of it? Will I ever go back to being my old self?

My dad requires me to take weekly drug tests since he found out that I was smoking marijuana. My first test came back positive for marijuana and cocaine. I was not surprised about the marijuana because I had only been clean for five weeks, but I have never done cocaine. Is there anything that could have triggered a positive result? Could opium or mushrooms or any other drug possibly trigger this positive result?

1) I found a white powder in my friend's car and I think it might be cocaine. I'm not sure if it is or not. I don't know if I should confront him with it or what I should do. I don't want to see my friend get hurt, but if I'm wrong, I don't want to falsely accuse him of something like this. How should I go about handling the situation?

2) I am a first-year business student and have a little sister who is a junior. I think she is doing cocaine because I found some "paraphernalia" in her room last week. What can I do without damaging my relationship with her?

Does ecstasy drain spinal fluid? Or is this a dumb myth?

My friend recently told me that she has a serious blow problem. She lives with her boyfriend and she said that all they do is work, sleep, and blow. By telling me this I understand that she has taken some very important steps into wanting to get better, but I'm completely useless in trying to help because I just don't know enough about the drug and rehab and ways to support her.

So far I've made the suggestion that she come spend some time with me and away from home so that the reminder of it is lessened, I can prevent her from bringing it in, and can try and keep her occupied to take her mind off it. What else can you suggest?

Is there any way to stop an E come down, or at least make it so I don't feel rough all day the next day?