Usually, applying gentamicin sulfate after a mosquito bite does not work. Mosquito bites release anthranilic acid, which is an acidic venom that causes an irritating reaction to the skin, and can be treated by topically applying hormonal ointments such as dianabed. And gentamicin sulfate is mainly used for the treatment of sepsis caused by sensitive gram-negative bacilli, lower respiratory tract infections, intestinal infections, complicated urinary tract infections. It is also used for central nervous system infections caused by sensitive bacteria, such as meningitis and ventriculitis, and the extended-release formulation is also used for chronic gastritis and mild acute enteritis. Gentamicin Eye Drops are also used for the treatment of conjunctivitis, keratitis, dacryocystitis and other infections caused by staphylococcus spp. and sensitive gram-negative bacilli, such as Escherichia coli, Klebsiella spp. and Proteus spp. Therefore, applying gentamicin sulfate after mosquito bites is not useful. Adverse reactions such as hearing loss, tinnitus, anemia, hypotension, etc. may also occur after use, if necessary, it is recommended to stop the drug in time and seek medical attention. It is prohibited for those who are allergic to this product or other aminoglycosides. In addition, it is recommended that patients use Gentamicin Sulfate under the guidance of a doctor and not for private use.