I would definitely see a Dr to confirm what is going on and they will prescrube what’s appropriate. You don’t want to risk it with baby’s eyesight.

If an infection is causing the eye discharge, a doctor may prescribe topical, oral, or intravenous antibiotics. Applying a warm cloth to the infected eye can help soothe irritation and reduce swelling.
Wipe goop and crusties from your baby’s/toddler’s eyes using clean, wet cloths, gauze or cotton balls, especially in the mornings and after naps.
Apply compresses (warm if it’s bacterial/viral; cool if it’s allergies or other irritants) to reduce the swelling.

Yes I agree with the first comment asking a doctor would be advisable just to know what it is and then see what remedies could work

It depends on what is causing the eye infection. Some will need medical attention. I would take baby to doctor to confirm what it is before deciding what course of treatment to take