Itchy, stingy, mildly swollen bottom R eyelid

I use Aveeno exfoliating facial cleanser, day and night creams. I don't wear lots of makeup, just blush and eyeliner. Tuesday 5/10 I wore eyeliner on top lid, little eye shadow, blush, and used a mascara curler. Midday my R bottom eyelid felt swollen, tingly, and very itchy. I washed all of my makeup off, rinsed my face with water. Wednesday - my eye was still swollen and itched more (no makeup on). Thursday - my eye really hurts now and the swelling is soo itchy that it burns! Up close the swelling looks red and a little dry on the surface. It is swollen just at the root of my eyelashes (bottom lid) I try not to touch it but I don't know what else I can do to get rid of it. I thought it was makeup irritant but it doesn't seem like it. Is there a good OTC EYEDROP product that I could use for this? Should I just hot compress it?
Side note: I am in finals and I don't feel stressed out but I may be? I don't think that is the cause. Please help!

[Ray T Oyakawa, MD]

There are a number of causes for this problem.  However, it is most likely a stye.  Try warm compress and see an ophthalmologist ASAP.

Dr. O.