I live in an infested country of mozzies and my other half is a all you can eat buffet if they do not follow the same routine.
We have tried every lotion and potion going and all the myths and old wives tales, and really the only thing that will work (and sometimes still get bitten, say in between fingers or a missed bit), is a high concentration of deet, 50%.
Out of all the ones you can get in the UK Jungle Formular is the best, dont bother with ASDA/Boots etc own brand they just dont work the same for us in any form. I buy the spray as I prefer it but do have a roll on in my bag always.
The bands/bracelets/noise things and other assorted 'stuff' just dont cut the mustard I'm afraid for us as well as garlic tabs, or Skin So Soft or vit tabs.
Have a look at Savers on line as they tend to do the best deals on the sprays, just check the amount as some are 90ml and some 125ml.
Protect yourself on an evening with long sleeves/trousers etc the usual precautions, but mozzies can and I can vouch for this, bite through jeans and even socks. Light colours are better than dark also to help avoid being bit.
I am not sure if Egypt has the Aedes mozzie, but if so this little bugger is also active a lot during the day, this carries a lot of nasty's you really dont want. I have seen first hand how bad Dengue fever is.
Keeping a fan or your air con on really helps to also keep them at bay, try and get next to a fan if outside, and although not much protection a coil to burn if outside. If you can also get a mozzie spray or plug in locally, buy some. Spray your room as you leave (inc lower levels of the floor), sorry its a lot of chemicals but better than being bitten.
I cannot recommend a cream as we always by a certain brand you cannot get in the UK, but looks like plenty of choice.