Spray tanning formula in open wound or cut? Could I get arsenic poisoning? I was using FakeBake spray tanning formula and when I did it got in a pretty large open wound I have and alot of the formula got into it. I tried to rinse it off like 30 minutes afterwards when everything else was dry. I know the DH stuff that's in spray tan contains arsenic and mercury...is there a possibility I could get arsenic or mercury poisoning from it going into my large open wound?