@shilolo I’m aware that you might be one of (if not the only) medical expert here on Fluther. Although I know very well that the advice is not to break a blister, it’s how I’ve always dealt with them as an adult, using a sterilized needle. Simply put, I find that they heal much faster. While I may have bucked all of the odds, I’ve never had an infection as a result, but always clean well afterwards, and immediately cover with a Bandaid and change daily, being sure to clean.