I went to a provider earlier this week and at the end of the session during the wipe down she put a hot towel on my chest. She applied a second hot towel that she sprayed down with some bottled spray to my crotch. Based on the sensation, I'm fairly certain the spray on the crotch towel was alcohol. This was a provider I had not been with before at a reputable place I have been to before. Should I be worried? Would she have done this if she did not have an STD?