For a possible corneal erosion that in a few days would improve, they send me an ointment. It was fine at first, but later it had discomfort such as stinging, burning or itching and dryness. So new treatments, always prescribed by an ophthalmologist, for the ocular surface followed. After months without improvement, on the contrary, the possibility of hypersensitivity or toxicity of the treatments finally falls and they are suspended. Can irreversible damage remain on my eye surface? Can it cause chronic allergic conjunctivitis?