If your right eye swells and you experience pain in the middle part of your nose bridge, it may be due to a stye or conjunctivitis caused by a bacterial infection. It is recommended to take oral medication and eye drops under medical guidance, avoid spicy, greasy foods, and excessive eye strain. Additionally, you can apply a topical ointment and take cefaclor granules orally. Make sure to rest more, maintain good hygiene, and consider visiting a professional hospital for a check-up.