Eye drops are generally colorless to slightly yellowish clear liquids that are topical medications, and their proper use generally involves gently squeezing out the medication with the hand and dropping it into the eyelid. Eye drops are indicated for localized infections of the external eye and appendages caused by sensitive bacteria. Adverse reactions such as burning pain and swelling of the eyelids, conjunctival erythema, and localized skin irritation may occur in some people who use eye drops. It should be noted that renal insufficiency, abnormal liver function, myasthenia gravis or Parkinson’s disease and elderly patients should use with caution. If you need to use eye drops of people, it is recommended to go to a regular hospital to consult a doctor, under the guidance of the doctor to use medication, do not use eye drops without authorization, in order to avoid abnormalities.