Traveling with five children I need to be prepared with several kinds of medicine. Mostly for "what if", but I would hate to need a fever reducer in the middle of the night in a hotel.
My trip medicine bag is nothing fancy, but it gets the job done. I used a plastic zipper bag that a set of twin sheets came in. I added adult and children's medicine, and also basic first aid. We are renting a beach house and you never know what is supplied until we get there. So I have band-aids and neosporin just in case. Last year we needed both so hopefully now that I came prepared we won't need them :) Don't let the unexpected illness, sunburn, headache, or fever catch you off guard. Pack a medicine travel bag for your family!