Why you don't try with a GOOD homeopath. In the meantime, start drinking a lot of water (see http://www.watercure.com)
and try some EFT for that issue (www.emofree.com). Those are things you can do alone immediately and the bad effects of those are almost impossible.
As for the zapper - if you feel you shouldn't use it and it worsens the condition - stop using it for now. It is important to know, that the zapper is an electrical device and different people react differently on the electricity - for some it brings benefit, while for others it does nothing or even causes discomfort.