P.W.
No, I have not heard of ear infections causing seizures, but I would guess that the ear infection causes the immune system to be weakened. I would think illness could make a child more susceptible to seizing if they are prone to seizures.
I understand how scary this is for you. I went through a similar thing with my son. Many children (and even adults) outgrow seizures so please do not give up even if your child goes on meds. Just do your research about the meds so that you can make an educated decision about which one and the dosage. Not all of them will make him sleepy. I would ask you to accept that much is out of your control so just take one day at a time.
My son was on medication from age 4 to 9, went off and was seizure free for almost 10 years but is back on meds again. The medication can deplete vitamin B6, which caused my son to be irritable. Once we learned this he began on a B-Complex at the appropriate dose and he is just fine! Would I rather he be off meds. OF COURSE, but that is not an option right now. I am trying to tell you...... just educate yourself and make the best decisions you can while knowing you cannot control the situation. Be positive. My son is fine and it is my great hope yours will be too!