Amoxicillin rash is a side effect of the drug known as amoxicillin. This drug happens to be a part of the penicillin family and rashes are often a common reaction. You’ve probably heard that when kids take antibiotics, they may experience side effects like diarrhea. But some antibiotics, such as amoxicillin, can lead to a rash. On the first occasion, a morbilliform rash usually appears 1–2 weeks after starting the drug, but it may occur up to 1 week after stopping it. On re-exposure to the causative (or related) drug, skin lesions appear within 1–3 days. It is very rare for a drug that has been taken for months or years to cause a Amoxicillin Rash Pictures Amoxicillin is an antibiotic used to treat various types of diseases. However, some people develop sensitivity to amoxicillin causing them to experience amoxicillin rash. Amoxicillin Rash is the presence of red or white swellings on the skin as a reaction to the intake of amoxicillin drugs, which are used to treat bacterial infections such as pneumonia, urinary tract infections and bronchitis. Amoxicillin is the name of antibiotic medication given for treating bacterial infection. Some people may develop allergic reaction for this drug developing skin rashes throughout the body. Amoxicillin rash is an allergic reaction to amoxicillin drugs. Drug allergy is a common occurrence to most people. It is common for people to experience symptoms such as diarrhea after use of some drugs such as antibiotics. Picture 1 – Amoxicillin Rash Source – buzzle. Amoxicillin rash is a side effect reaction of the drug and can occur five days after use. Although amoxicillin rash may appear scary for most parents, there is no specific treatment for amoxicillin rashes. Amoxicillin Rash Treatment. Most of the time when a person has an amoxicillin rash there is no treatment needed but if you start to have trouble breathing or any other complications happen you will need to see your physician or visit the nearest emergency facility. Amoxicillin is an antibiotic belonging to the penicillin family. It is used to treat bacterial infection and available in many forms like tablet, capsule, and oral suspension.