Hello and thanks for your query. I shall make an effort to provide you with good professional recommendations specific to your questions. Amoxicillin is the antibiotic of choice for treating bacterial ear infections. The drug is highly effective. Amoxicillin is used as a first-line agent for children with uncomplicated community-acquired pneumonia, which provides coverage for S pneumoniae. 3rd gen cephalosporins or macrolides like azithromycin are the alternative agents. Medicines have to be given as prescribed by your doctor. you can use the syringe and squirt the medicine along the inside of your kid s cheeks and can keep it off the tongue to hide the taste. As you have mentioned he is 3 year old, give him choice of taking it in cup or syringe or dropper. this gives same sense of empowerment to him, because he may feel like it was his decision. At any cot i advice you to give the medicines at correct time and doses and for specified duration of time as prescribed by your doctor. Yet again, I duly appreciate your query to me, I do hope that you have found something useful to help you and I shall be glad to answer any further apprehensions. Sincerely