Hopefully this is an eyelid problem and not an eye problem. If so the most common cause (assuming no injury) would be an infected gland in the eyelid (stye). Your treatment without see a MD would be limited to warm compresses to the closed eyelid. If antibiotic eyedrops are available without prescription you might head for the pharmacy and discus with a pharmacist.
The ideal solution would be to see a general MD or Eye MD. If he is phsically ill with fever, chills, tense swollen skin you need to go to emergency room.