JT is a 3-year-old male that was seen 3 days ago for acute otitis media. He weights 15 kg. Utilizing the dosage calculator in Medscape, write a prescription for liquid amoxicillin. If the patient develops a rash and is presumed to have an allergy, what alternative antibiotic would you prescribe to treat his acute otitis media? What education would you provide his mother during this visit?