I got some prescription powder to help clear up the rash on my fupa/lower tummy. But it has talc in it and I am concerned about it falling down into my panties and putting me at risk for cancer. My woman pharmacist said to only use a small amount but use it often, 2-3 times per day. Is this something to worry about? I rarely use powder and always make sure it is cornstarch and not talc, but this rash is bothersome. (fupa = fatty upper pubic area for those who don't know)