The most common is acute conjunctivitis, which is caused by bacterial or viral infections, with symptoms such as foreign body sensation in the eyes, red eyes, photophobia, tearing, and excessive eye discharge. You can order levofloxacin eye drops 3-5 times a day, ganciclovir eye drops 4 times a day, and apply levofloxacin eye gel at night before going to bed. 2. Allergic conjunctivitis, caused by acute allergies, can have itchy eyes, eye congestion, and need to do allergen tests to keep away from allergens. You can apply anti-allergy eye drops, such as Olopatadine eye drops, 3-5 times a day to dot the eyes. 3, severe dry eye, the tear film is through the transient movement of the eyelids, the tears coated on the surface of the eye, due to sleep transient less, after waking up can appear eye congestion, you can use artificial tears type eye drops.