Is erythromycin the right script for a chemical contact with the eye? (oven cleaner) irritated my eye and second visit to the er the couldn't belive it was given to me...

If : If you are referring to Erythromycin ophthalmic ointment, possibly. A chemical conjunctivitis like you have probably experienced would likely resolve with no treatment at all. Artificial tears can help symptoms, but time is the best therapy. Your doctor may have noted diffuse minor disruption of the corneal surface. Such findings may make you at risk for infection. The benefit of ointment is that it may lead to improvement of the foreign body sensation you are experiencing. Additionally, it may theoretically prevent infection. A severe chemical conjunctivitis needs evaluation by an ophthalmologist. If you are not feeling better soon, see an eye doctor.

Erythromycin : Erythromycin "ophthalmic" ointment is used often in ophthalmology. But you have to make sure the preparation that you pickup is for the eye and not for the skin.