Are your original symptoms back? The original symptoms for why you took the antibiotic? That is usually what would reoccur if you didn’t take sufficient amounts of the medicine. Did your ears bother you when you were first sick?
Was the drug Augmentin (Amoxicillin Clauvanate)?
Here’s the deal, it is important to take the antibiotic correctly because each dose helps to maintain a certain, constant, amount of medicine in your blood, if you wait too long in-between doses or skip doses the level goes down and the bacteria start multiplying again. The antibiotic is chipping away at the number of bacterias so to speak, over time, and if the numbers are allowed to grow over and over again while taking the medicine the number never is reduced enough to finally get rid of the infection. They will be low, so you have no symptoms while you are still taking some of the meds, but when you stop the medication, then the bacterial is still present and starts multiplying again, and in a few days you are sick again. That is why it is important if it says three times a day, to take it every 8 hours, not just three times during waking hours. Twice a day, is every 12 hours, not when you wake up and when you go to sleep. Taking an antibiotic isn’t the same as taking something like a decongestant, because an antibiotic actually works on the underlying cause to cure you. Something like a decongestant or pain killer works on relieving a symptom, they are not cures.
I just explain that for future reference, we don’t know for sure the antibiotic didn’t work based on what you wrote, because ears can stay clogged up post infection for a little while, but if they hurt that is different than just clogged. Also, if you were on a very high dose it might have worked even with how you took the drug., You may just have ear irratation from having been sick, which seems more likely to me since it is both ears.
I think you need to go back to the doctor and let him evaluate you if your symptoms still persist.
Next time you have trouble taking an antibiotic tell your doctor or pharmacist. Sometimes it is as simple as eating food with the drug will cure the bad tummy side effects. With each drug you need to check if it is ok to eat with it, for some it blocks the absorption of the drug, for others it doesn’t. Some drugs you can’t take with milk, all those things are important to check. Or, your doctor might change whatever drug you are taking if you don’t tolerate it well. Better to change then not take it well through the whole course of the medication.