I’d consider going somewhere else if I were you. Not sure about egypt, altho apparently its really nice. Def check the forecasts on the internet before you go, they’re usually pretty accurate.
I have been told unders take longer to heal, I had overs and went out for dinner the same evening that I’d had my surgery! I struggled to eat tho, but was fine being out and about. The worst part is when the anaestetic wears off, it makes you feel quite sick so ask the hospital for the anti-sickness injection if you can! If I had known about it at the time I would have asked! Good luck with your op, you’ll be so pleased with the results xx