2. Otalgia without an obvious otologic cause is referred from somewhere else. So unless you can identify what THAT is, you won't know how to treat this. 3. I don't recommend steroids for AOM. I'm not even crazy about routine abx for AOM. Look at a lot of the more recent, large studies on watchful waiting. Otherwise, your dosing is going to depend upon weight, if a child. The does you suggested would be undertreating an adult. 4. I don't know that there is. 5. If the membrane is ruptured, it would probably be prudent to at a topical (ofloxacin, eg). 6. Ultimately the Eustachian tube is responsible for draining the ear of fluids. So we typically blame OME on its dysfunction.