My Friend Has This Horrible Skin Problem. She Believes There

my friend has this horrible skin problem. she believes there things under her skin says it feels like glass or something sharp under her skin, she has to get out. she lost her husband a month ago, it has gotten wores. she has ruined her back from staying bent over for hours, even days picking at these things. have you ever heard of something like this. it's consuming her entire life now that her husband gone. she's 60 yrs. old I can't stand to be around her, it's driving me crazy & everyone that's around her... what on earth could this be; her arms are torn to pieces can I not get the first question free, I have many more questions; I leary about putting my credit card on something I'm not sure abou