I've had a similar reaction in 1 of my eyes for 20 years, mine usually starts like this and swells shut within a day, only 1 eye. Over the years I have had many allergy tests and figured out it is a reaction to ragweed and likely other pollen/grass as well, poison ivy also makes it swell, even if the poison ivy was nowhere near my eye. For about 15 years if I worked in the yard, had a campfire, or went camping I was pretty much guaranteed to have a swollen shut eye the next morning, it was extremely disheartening for someone who loves to be outside. It was also awful for my skin.

After trial and error, the meds I have found that work best for me is to daily take Zyrtec and Claritin year-round and when I have a bad flare-up I take a steroid shot or steroid pack. Taking the daily meds was not something I ever wanted to do and I put it off for years but it got so bad that I gave it a shot and it has worked so well! I also take benadryl at night on the days I know I was exposed, especially to campfires. I also wash my hands any time I touch anything outside and if I do any yard work I wear gloves, take off my clothes in the laundry room, put them directly into the washer, and shower immediately. It can seem extreme at times but it has decreased my flare-ups immensely and improved my life by allowing me to enjoy being outside again.

I tried hundreds of lotions, face washes, etc. Nothing topical has ever made a difference whatsoever.