What is the cause of a painful rice pimple in the corner of your eye?

Millet-shaped bumps in the corners of the eyes, accompanied by pain and other discomforts, may be caused by mosquito bites, but also blepharitis, blepharocysts and other causes.
1. Mosquito bites: If a patient is bitten by a mosquito in the corner of the eye, a small rice-like lump may appear in the corner of the eye, accompanied by pain, itching, swelling and other discomfort.
2. Blepharitis: Blepharitis refers to suppurative inflammation of the eyelid glands, mostly related to poor eye hygiene, and patients may experience redness and swelling of the eyelids, accompanied by pain and congestion in the affected area.
3. Blepharophalangeal cysts: Blepharophalangeal cysts are chronic granulomas formed in the area of the blepharophalangeal glands, which can appear in the corners of the eyes of the patients with millet-like bumps, and when combined with infections, the patients can have eyelid pain, which may be accompanied by eyelid swelling, redness and other discomforts.
It is recommended that patients with painful lumps in the corners of the eyes seek medical attention to evaluate their condition and follow the doctor’s instructions for treatment.