Redness, swelling and pain in the corner of the right eye area are usually due to granuloma, but can also be due to blepharitis, dacryocystitis, etc. It needs to be treated according to the different causes. 1. Wheat grain swelling: redness, swelling and pain in the corner of the right eye, usually due to the formation of wheat grain swelling, and bacterial infection. Early patients can do hot compresses on the eye with the application of antibiotic treatment, such as applying erythromycin ophthalmic ointment. When abscesses form, incision and drainage are required. 2. Blepharitis: it is a chronic inflammatory lesion of the eyelid margin tissue, which can lead to congestion and swelling of the eyelid margin, the treatment should be a good eyelid margin cleaning and care, and antibiotic medication such as tobramycin eye ointment can be applied to treat the presence of bacterial infection. 3. Dacryocystitis: mostly caused by the blockage of the tear duct, usually seen in the inner corner of the eye, redness, swelling and pain, increased secretion, the principle of treatment is to control the infection, relieve the pain, so that the blockage of the tear duct to re-open. The principle of treatment is to control the infection, relieve the pain and reopen the blocked tear duct. After controlling the infection by using ofloxacin ophthalmic ointment, the tear duct can be unblocked by nasal lacrimal sac anastomosis and other surgical methods. When redness, swelling and pain appear in the corner of the right eye, it is recommended to seek medical examination and treatment promptly. Medications should be used under the guidance of a doctor, do not self-medicate.