What Causes Red Patches And Swelling On Face?

In the past 4 months i have been experiencing red dry patches under my eyes kind of at the top of my cheek bones and on the tops of my eyebrow and on my forehead on my chin and a few on my cheek area. They itch and sometimes sting. i tried several different lotions and vitamin E. Seems to form a layer of crusty skin that flakes away. It first began I woke up to a swollen face and eyes. My face is not swollen anymore this only happened about 3 times. but my red dry itchy patchy skin still remains. I never changed anything so I don't think it could be an allergy, possibly eczema, or psariasys. I noticed just last night that my scalp is starting to get itchy. I don't have insurance so I can't go to the doctor, It is interfering with my work and trying to get better work. Any suggestions!!??