What medicine does the eye redden itch use

When spring or autumn comes, the concentration of pollen or Artemisia in the air rises, which will cause type I hypersensitivity reaction of conjunctiva for patients with allergic constitution, showing redness, itching and other manifestations, called allergic conjunctivitis. Treatment should first be separated from allergens, wearing masks, for patients with eyelid itching, tobramycin dexamethasone eye ointment can be locally applied to both eyelids, and anti-allergic eye drops need to be dripped in conjunctiva sac. This kind of drops is divided into three categories, the first is mast cell stabilizer, represented by pyrimidilast potassium eye drops; the second is antihistamine eye drops, represented by emedin; the third is a mixed solution of the above two dual-effect mechanisms, and the third mixed solution is most commonly used clinically, with fast onset and long duration.