it could cause tissue damage at injection site and scar tissue buildup, alcohol evaporates so place bottle in oven set at 170-200 and stick a pin for venting the vapor out of it, that reduces the ba in your bottle and the pain; but you would not know how much ba is left in your bottle so i guess it's not a perfect solution! in the past when i had problems with painful stuff, that is what i would do i would leave the bottle in oven for only about 10 minutes and never had any problems with those particular items.