If you take Amoxicillin for a long time, your doctor may perform additional tests to check your kidneys, liver and blood are working normally. Amoxicillin is a penicillin antibiotic that fights bacteria in the body. Clavulanate potassium is a beta-lactamase inhibitor that helps prevent certain bacteria from becoming resistant to amoxicillin. Drug rashes are skin irritations that occur due to allergic reactions to medications or antibiotics. They look like small bumps, or scaly itchy skin patches. Amoxicillin (Amoxil, Moxatag, and Larotid) is a penicillin antibiotic prescribed to treat a variety of bacterial infections such as sinusitis, laryngitis, strep throat, pneumonia, and urinary tract infections. Common side effects are insomnia, heartburn, diarrhea, and itching. Pregnancy safety information is provided. Amoxicillin is a penicillin antibiotic that fights bacteria. Amoxicillin is used to treat many different types of infection caused by bacteria, such as tonsillitis, bronchitis, pneumonia, gonorrhea, and infections of the ear, nose, throat, skin, or urinary tract. A rash is defined as a widespread eruption of skin lesions. It is a very broad medical term. Rashes can vary in appearance greatly, and there are many potential causes. What should I discuss with my healthcare provider before taking amoxicillin? You should not use this medicine if you are allergic to any penicillin antibiotic, such as ampicillin, dicloxacillin, oxacillin, penicillin, or ticarcillin. Sometimes the rash is slightly raised and pink in color. The rashes appear after five to seven days of taking amoxicillin and commonly found on the chest, back, and abdomen. 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. Package leaflet: Information for the user AMOXICILLIN 250mg CAPSULES BP AMOXICILLIN 500mg CAPSULES BP Amoxicillin (as amoxicillin trihydrate) Read all of this leaflet carefully before you start taking this medicine because it contains.