<human>: Give me the gist of the text in a nutshell

My dog is about 50-60 lbs 10 months old and he terrified of the ear cleaning solution.  We cleaned it out once when he was about 6-7 months old and he just wouldn't let us put it in his ear without putting up a fight.  I finally put on thick gloves and a thick jacket and just restrained him as my fiancee put in the solution.  We just looked in his ear again and they need to be cleaned out.  If we hold his ear for more than 2 seconds he freaks out and snaps.  I don't want to go retraining him everytime we have to do this because I don't want any sort of resentment coming from him or him growing aggressive habits from it.  Any advice would help.
<bot>: My 50-60lbs dog gets scared and snaps/bites when we try to clean his ear out.  How do I get him to relax/calm down when applying solution?