Suggest Treatment For Blisters Caused By Exposure To Sun

I have a sunburn on my forehead & top portion of my scalp (where my bangs were parted). There are very small blisters as there is liquid build up that is drying. My biggest concern is that my forehead & eyes are swollen to the point I can feel the pressure. I am concerned as the swelling keeps moving down my face, I dont know if it will at some point effect my vision. I was thinking about going to the doctor, but didnt want to pay for a visit if there isnt anything they can do or perscribe that I cant get over the counter. Any medical advise would be greatly appreciated.