Blood congestion in the corner of the eye area can be caused by a variety of reasons, such as conjunctivitis and allergies. When the conjunctival tissue in the corner of the eye encounters an adverse stimulus, it tends to cause the blood vessels inside to dilate and become engorged, resulting in a localized red appearance. Conjunctivitis is a common cause of redness at the corners of the eyes, usually caused by bacterial or viral infections, and can be treated with antibiotic drops or antiviral drops in the eye, commonly used antibiotic drops are ofloxacin and tobramycin, and commonly used antiviral drops are ganciclovir. Allergy is also a common cause of redness at the corners of the eyes, which is related to the contact of the conjunctival tissues with pollen, dust, smoke and other allergens in the external environment, and can be treated with anti-allergy eye drops, such as Olopatadine Hydrochloride Eye Drops and so on. All of the above medications should be used in accordance with medical advice. When there is congestion in the corners of the eyes, you can go to the ophthalmology department of a regular hospital to find out the cause of the disease and follow the doctor’s instructions for treatment.