I would suggest going to the doctor at the hospital. It's not the cost like in the states. When I had a huge problem like that, the doctor's office used a warm solution of something to dissolve the wax plug. There is an ear wax removal kit that they sell here in the US also, with a thing to pump water or liquid into the ear. It is a VERY uncomfortable experience to have an ear plugged with wax, I know. Hope he gets it resolved soon.