What to do if i have swollen eyes how long until swelling is gone?

Chemosis eyelids: Depending on the cause of swollen eyelids. Lack of sleep, post infection or trauma or surgery. Fluid retention. Each cause has a different prognosis and treatment. If painful swelling post surgery or injury must see an Ophthalmologist to rule out facial cellulitis. So you see. From a benign condition to serious illness it is a wide spectrum. See your Doctor.