Oh man! Shame, thats a tough one to respond to, especially if the medical aid has now stated it is an exclusion. I do think you need to tackle the medical aid on this one, as I have never heard of it being deemed an exclusion, and you should seek ENT advice and ask them to assist you in advocating to the medical aid as to why it is not acceptable to leave your son in this condition for a year!! That is totally unacceptable.
It is a catch-22, because if there were no infections there would be no discharge and the holes would heal on their own. But having the grommets in would keep the middle ear aerated and allow for the drainage which is what the holes are doing. But it is important to try get to the bottom of what is causing the constant discharge and how to treat it. Unfortunately as you say, the antibiotics will help for the time while on them, and then not resolve the underlying issue. Have you had his tonsils and adenoids checked?
I really think the best place to start is by seeing the ENT again and find out whether there are ear drops that can assist with keeping the ear dry. Maybe have a deeper closer look at his diet, and what could be assisting in the mucous build-up - sometimes dust / gluten / dairy allergies could keep the discharge and mucous build-up constant. It would also be a good idea to have a CT scan of the facial / sinus / bones to assess whether there is anything structural causing the mucous build up.
Good luck! Keep me posted!!
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