Please recommend a cushion foundation for sensitive, dehydrated oily skin.

I'm a student with sensitive, dehydrated oily skin, but I really want to wear makeup. However, going around just wearing BB cream or tone-up sunscreen is a hassle because it's inconvenient to carry around and reapply, so I think cushion foundations are the most convenient. My skin is dry everywhere except my nose, and my U-zone is especially, really, really dry. On top of that, my nose is super oily, and my forehead seems to be just as dry. Please, please recommend a cushion foundation for sensitive or dehydrated oily skin. I'd love one that doesn't cause skin allergies.