Me and a friend have been getting our stuff from a new guy lately and it seems its been tearing up my nose pretty bad. Friend also claims to have pains and small scabs in his nose as well. We have been using it one or two times a week. Is this something normal, or possibly from something that is being used to cut the coke? I have had a slight head-cold for a while, stuffy nose and all, I thought that may have been the problem until my friend started feeling it.