Dr. Cody is the Mayo Clinic's Chief of Otolaryngology and you can no more quarrel with his course of instruction or recommendations than his authoritative position as he discusses these three most frequent sites for childhood infections and irritations -- usually minor and preventable. (No rummaging in the ears with a Q-tip ever, nor a lollipop stick.) He also deals with the rarer, more serious conditions -- tumors, Bell's palsy, Meniere's disease, etc., but for the most part, prefaced by a long glossary of terms for each section, he discusses conditions as familiar as the common cold. In between the more formidable terminology, you'll learn that too much wax in your ears is better than too little, that 99 percent of sinus sufferers have normal sinuses, and that there are only two conditions which justify the removal of tonsils. From this alone you can deduce that is a responsibly, reliably conservative source of diagnostic and therapeutic opinion.