Meth doesn't leave the body through elimination, but the body needs to get it out of the body. So it pushes meth out the skin. This feels like little itchy worms under the skin. Addicts scratch which forms scabs. Some addicts eat those scabs because they contain meth. Not turned off yet? Meth rots the gums and teeth, even in teenagers who do meth. The gums turn brownish black. Teeth fall out. If you do not do meth, why are you hanging with people who are in self-destruct mode. Get new friends. Volunteer at the animal shelter. Get a dog. Spend time with people who are doing something real. Do good in the world. Leave those losers behind.