Alavert and balance issues

I have been having balance problems since Jan after I returned from a cruise. I have been to several doctors and and ENT. I have been on aquatab c, zertic, meclizine, and an antibotic. Nothing has helped. I was told by a co-worker who has sinuses and did expereience balance issue that she used alavert. Do you think that it could provide me with some much need relief?

Please Help