Thank you for your replies everyone. I visited my local boots pharmacy on Saturday afternoon (looking a picture I can tell you) . Suggested I rub in some Golden Eye ointment although not sure what I was supposed to rub it into as my eye was not sore or red, just very swollen. I sat most of Saturday and Sunday with compresses on my eye. Tried cold then hot which seemed to help more. Still swollen on Monday but a little better yesterday.
I am wondering if I could have gotten a cold in my eye due to sleeping a few feet away from my fan (laughing hysterically as I typed that, silly person that I am) a fan, that I use to combat the awful night sweats.
Thank you all for your concern. I tried moving the fan further back and turning it up but don't tell DH last night. My eye is still a tiny bit swollen but lots better. Thank you all again you lovely lot. X