Alrex is a kind of Loteprednol medication, usually used for seasonal allergies, providing the patient with temporary relief from itching, redness, swelling and irritation. Loteprednol belongs to the category of medication named as corticosteroids. The drops can be used for short-term treatment for the seasonal eye allergy by reducing eye inflammation. Usually after 2hours of instilling this drop, your typical eye allergy symptoms can be relieved a lot. If you take the drop for more than 2days and no improvement has been found, you should let your doctor know the situation immediately. Just as I said it could reduce inflammation not only just provide you the relief from pain and suffering. If it works just as you said you felt much better after instilling it, you can stop instilling it. Generally speaking, this kind of eye drop shouldn't be used for more than 14 days continuously. Hope you could get well soon.