i don't get whole body numbness but skin burning accompanies dp periods with me, particularly the back of my neck and back. i used to get it alot when over doing it with my general drug abuse. again when in my initial chronic dp state. also when starting ssris i get it badly along with all the other side effects. when i was badly dped i couldn't bear water to touch my skin but in more recent times i have found that the burning accompanies the start of a dp episode(i mean within hours so don't panic) and i use a cloth soaked in cold water on the back of my neck, back and face. my mum got me a cold pack to help last summer when i was suffering pretty badly but frozen peas in a towel works fine