Is acute bilateral exudative middle ear infection easily treated? And …

Is acute bilateral exudative middle ear infection easily treated? And after a cold, did your children not have earaches? Treatment started only three days later and I'm very afraid ??? They just say that if one ear gets sick, it always gets an earache right with a cold and the ear will be sore ? and we got an ear complication due to the flu, so the ear got affected ? and I left it for three days, thinking that the temperature warmed up and leaked out (as one person told me)