Chronic ear infections baby?

Anyone else dealt with chronic ear infections with your baby? Last week she just finished round 4 of antibiotic, she’s better for about a week and then last night she started a fever, tugging on ears, I think we have another one. We have an appt tomorrow with the doctor and last appointment she said we will talk about getting referred to ENT. Ugh I just don’t get how she can be better for a week and then another one so quickly. I feel soooo bad for her. I’m so sick of her being sick! It’s been ongoing this summer.