Redness and swelling of the place bitten by ticks, it is recommended to clean and disinfect the wounds in time and treat them with medication. First of all, we need to carry out local disinfection, commonly used disinfectants are iodophor, alcohol, hydrogen peroxide, etc., which acts on microorganisms and pathogens, causing their proteins to denature, lose normal structure and function and die, so as to achieve the effect of disinfection and sterilization. Due to the phenomenon of redness and swelling, it is recommended to follow the doctor’s prescription with medication for treatment. Commonly used medications include glycerite lotion, lincomycin lidocaine gel, erythromycin ointment, etc., which can eliminate the redness and swelling. In addition, it is recommended that patients with redness and swelling at the place where the tick has bitten should consult the doctor in time and follow the doctor’s instructions to avoid delaying the condition.