Ear and head pains. To clear my problem.

I got cold first. Then ear pain and head pain in left side of head. The pain starting in the ear and it is hitting to head like an impulse. I have this problem since one month. I am not sure why it is happening. This is also causing ache on upper portion of eye, mild upper tooth pain. Pain on neck is also there. This is all in the left side of head only. I consulted an ENT specialist but I am not sure whether he is telling correct or not. He asked me to take PNS scan. He gave tablets like sinarest, rabesec, ceftum, nasivision spray and medrol. But no result found. He said that you have to done with some surgery in the nose i.e, the bone which is separating the both nostrils is just bended. So I have to be done with suegery. I don't think this is necessary. Because I have the doubt that is that doctor is sure or not. Because I don't know whether the given medicines and his words are corelated or not. Please help me and suggest correct approach to clear my problem. Thank you.