Holidays often bring about a lot of stress (cooking, cleaning, company). Remember that stress is one of the things that will bring on a flare the fastest. Add that to what Marla said, about the possible delayed reaction, and you had the perfect set up for a flare. In time you will figure this all out ( ok, not all). Just always remember that stress is never our friend
Success is not final, failure is not fatal: it is the courage to continue that counts.