Flying with a seroma

Hi peeps

I have a seroma on my chest wall, following mastectomy with flat closure just over 12 months ago. The seroma has been drained multiple times but keeps coming back - the saga continues...

I'll be going on a flight (for a holiday - yay!) on Saturday, and it's just occurred to me that I might have some additional pain or discomfort with the seroma due to the cabin pressure. Does anyone have experience with this?