I know this thread is old but it had the title I wanted , anyways. I've had a lump on the back of my neck for two days and a lump on my butt cheek for a week, The lump on my butt is going away itself but the lump on the back of my neck is bothering me. I smoked a gram of weed or something today and some crystals, Also the lump on my butt was purple, the lump on my neck, the color is unknown. While smoking today, It sorta botherd me, but never really hurts or irritates unless i touch it. Even weirder i was touching the back of my neck and it felt like peeling skin. so i lightly prodded around my neck with my hands until this gunky scab feeling stuff easily came off, the color of it was sorta the color of my skin ( tan ). and i smelt the gunk and it smelt like half weed have weed resin. after such gunk was removed. mind you said piece is the size of a grain of rice, maybe 2mm bigger at max. so after the piece was removed i prodded the back of my neck again seeing what i felt and what i felt was a little groove and wetness. so i cleaned up the blood that trickled out and the size of the lump is now dramatically smaller, so what i ask is what do you think is taking place, My very first though was, i am burning a hole through my throat, just very slowly, my second thought is something got caught in my pores. but im already reconsidering this idea, seeing as smoke is a gas and a solid gunk like rice piece came from the back of my neck.. solid ... but then again maybe it was just a clogged pore that happened to be coated with weed tar?