After dropping eye drops, the eye drops may enter the nasal cavity along the tear duct and then the mouth, so there will be a bitter situation in the mouth. Because there is a point directly below the eye called the tear dots, the tear dots are used to drain the tears, so after the eye drops, the tears may enter the tear ducts along the tear ducts, through the tear ducts into the tear sacs, nasolacrimal ducts, and then reach the nasal cavity, the nasal cavity and the oral cavity are connected, so there will be a bitter situation in the mouth. Therefore, in order to avoid this situation, it is recommended that when you order eye drops, generally after dropping eye drops, you should properly press the position of the inner corner of the eye to prevent eye drops from entering the tear duct, and the effect of treatment will be better. Especially when children are using ciliary muscle paralyzing agents, such as atropine sulfate eye gel, they must press the position of the inner corner of the eye to be able to avoid some adverse reactions of the drug.