In general, recovery from a rash when taking amoxicillin varies from person to person, depending on timely treatment and the patient’s physical condition. Amoxicillin is an antibiotic and a rash indicates an allergic reaction. In this case, the drug should be stopped in time, and at the same time use some anti-allergy drugs, such as oral antihistamine, loratadine, paracetamol, ibogaine and so on. Or use some hormones, either intravenous or oral can be chosen. It is important to observe the extent and degree of the rash, if it is heavy, hormonal intravenous fluids are needed, and some calcium supplementation to prevent allergies. A particularly high allergic state can even cause a liver and kidney skin rash, which can cause some swelling of the mucous membranes. If edema of the larynx is very dangerous, the exact time when it is possible to fully recover depends on the reaction of each person to the drug and the state of its administration. If the symptoms are corrected in time, it should improve significantly in 3-5 days, but of course the rash may have to be gradually moved back for a period of time. Before taking the drug, patients must do penicillin sodium skin test, positive reaction is prohibited. Patients with infectious mononucleosis are prone to skin rashes when applying this product and should be avoided. Patients with a long course of treatment should check liver and kidney function and blood routine. People with a history of allergic diseases such as asthma, chilblain fever and the elderly with poor liver and kidney function should be used with caution.