Judging from the name, the ingredients of this eye drop should contain pearls. You can read the instructions for this eye drop. For eye drops containing pearls, because the pearls need to be dissolved with alcohol during the production process, the alcohol will not evaporate cleanly, and some people will feel a stinging sensation when using it. Many Western medicine eye drops also have this problem, and this is also because some ingredients require alcohol to dissolve during the production process. You can try pure aqueous Qianliming Eye Drops, a well-known Chinese trademark, with guaranteed quality