What Causes Pain In Adams Apple After Smoking Crystal Meth?

my friend call me freaking out that he snort a chunky line of crystal meth and complaing that it hurts and he doesn t know what to do. The pain is below his adams apple....so I told him that one of those chunks landed in a spot there in his thoart and started it s process of being absord into his body and like a shard from welding project the shard has burnt a spot in the lining of his thoart. I told drink lots water, take a pain pill, and avoid stuff like chips and nachos. But I am concerned too.....I told to stay calm and relax , of crouse feeling the effects of the drug thats hard to do. WHAT should he be eating or taking to relieve the burn . What do the professional have to say about what best to do?