External Ear Infection and Flying?

I have swimmers ear and it is only affecting my outer ear from what the doc could see. She put me on pills to help encase of a middle ear infection and drops for the outer one. I have had this infection (swimmers ear) since Sunday-Monday and have a flight tomorrow night. At the moment the pain has gone away and there's just a few rem nets of blood leftover on my outer ear but I still have a feeling of fullness (doc says it is from swelling). I can not miss this flight to Florida (going on a cruise). Suggestions on what to do to avoid a possible eardrum rupture or pain? or if I am even eligible to get a rupture?