I've had several skin biopsies/surgeries while on hydroxychloroquine (Plaquenil) and no Dr has ever requested that of me, so I find this a bit unusual. I'm not sure what the purpose would be, either. Sorry.
Lynnwood, Lupus & Sjogren's Moderator, Dx: 2000DIAGNOSING LUPUS & HW's LUPUS 101
"Life is far too important to be taken seriously." - Oscar Wilde