Loteprednol is a topical steroid used to provide eye relief from symptoms associated with allergies. It has a smaller side effect profile compared to other ophthalmic steroids and combats symptoms of allergies starting with the inflammatory response. 

Ketorolac is a topical, non-steroidal anti-inflammatory drug (NSAID) used to decrease eye inflammation and itching due to allergies. It improves symptoms of allergies by blocking prostaglandin, a substance that is released in response to an allergen.

Epinastine is a long acting, prescription eye drop used to relieve itching and irritation associated with allergies. With only twide daily application, it blocks the release of substances present in response to allergies to decrease inflammation during and after exposure.

Prednisolone 1% is an eye drop used to treat mild to moderate irritation, redness, and inflammation. It is an ophthalmic steroid that provides relief by blocking the pathways causing swelling and the inflammatory response, addressing symptoms that may be left unresolved from over the counter options. Prednisolone serves as the drug of choice for a variety of conditions including allergies, irritation from foreign objects, and infection when treated appropriately.