There are several possibilities for eye pain with red blood and tearing: i. The most common is keratitis, which is caused by untimely treatment of conjunctivitis or due to bacterial viruses, which are virulent. It is a complication that occurs after a week of conjunctivitis. The performance has eye grinding pain, photophobia and tearing, eye congestion. You can order levofloxacin eye drops, 3-5 times/day, ganciclovir eye drops, 4 times/day, and apply levofloxacin eye gel at night before going to bed. Second, corneal foreign body secondary infection, the patient has a corneal foreign body and did not remove it in time, when the infection occurs, there will be eye pain, red blood and tearing symptoms. The corneal foreign body needs to be removed and anti-inflammatory treatment given. In acute iridocyclitis, pain in the eye, photophobia and tearing, eye congestion, and decreased vision can occur when iridocyclitis is present. You need to dilate the pupil, give tobramycin dexamethasone eye drops, dab the eye every two hours, apply tobramycin dexamethasone eye ointment at night before going to bed, and apply systemic hormone therapy if necessary.