Whether or not a rash from taking amoxicillin will heal on its own depends on the patient’s physical condition, the amount of amoxicillin and the severity of the rash, and cannot be generalized. Amoxicillin is a penicillin drug. Allergies to penicillin-like drugs can cause a rash in mild cases or anaphylactic shock in severe cases, which can even be life-threatening. If you are allergic to penicillin you should not take amoxicillin. If you take amoxicillin without knowing it and get a rash, it is recommended to go to the hospital. If it is very mild, you can take some anti-allergy medicine or drink more water, stop the use of amoxicillin, and the rash will slowly recover as it gets lighter. If you take anti-allergy medicine, or if the rash is getting heavier, it is recommended to go to the hospital immediately. Because of penicillin-like drug allergy, there is still a certain risk. It is recommended not to drink alcohol while taking amoxicillin. Although it is not like taking cephalosporins that can cause disulfiram-like reactions, it can also affect the therapeutic effect of the drug and increase the burden on the liver. Both after drinking alcohol and after taking the drug will be metabolized by the liver, which will have a greater impact on the liver.