A.C.
Yes, my youngest has had this problem pretty consistently. They say he's got fluid in his ears all the time. My eldest had too many infections and when he was 20 months old he got tubes in his ears. That really did the trick. The following summer he was a little fussy but he outgrew the problem after that and hasn't had an issue in over a year thank goodness. My youngest: he hasn't had the "infections" that my eldest had, but he goes in just as often, I swear. Fluid (I think from his sinus?) backs up in there and causes him pain. It gets especially bad because he has allergies and can get a sinus infection easily too (that has caused his fevers). I have to give him children's zyrtec (the pediatrician told me the dose for his age/weight) and that does help. We're looking into getting tubes in his ears though; we're scheduled to do a hearing test for him with the pediatric ENT because he's also a little delayed on speech. He can understand us, but when the doctor asked me to talk to him, she showed me how I emphasize the last word (let's go get a DIAPER or time to go to BED) and that he may just be getting that last word. She says too much fluid for too long could make us sound like we're talking underwater, which could hinder his speech as well as cause him discomfort, and she advised to just get the tubes. (This is for a chronic issue that we've had with him though). Someone mentioned that infections can change fast, and that's true. Fluid without treatment can end up being an infection overnight.
Another thing: little ones, if teething (especially a molar) may pull on their ear, get a fever, even break out in little baby acne.