Red bloodshot eyes are a manifestation of conjunctival congestion, which can be removed mainly by allopathic treatment and symptomatic treatment. Allopathic treatment is the use of drugs that constrict blood vessels to make the redness subside quickly, such as nalmivir drops, which have the effect of relieving symptoms quickly but cannot remove the cause of conjunctival congestion. For example, the following are common: first, conjunctivitis, which requires antibiotic drops such as tobramycin to control inflammation. Second, allergies, the need to use anti-allergy eye drops such as Olopatadine treatment. Third, dry eye caused by the need to point artificial tears eye drops to eliminate red blood, with the use of polyvinyl alcohol drops.