Hives,candida and Mercury

i am having big time problems with hives and candida
I tested for candida..saliva test came to be possitive for candia growth and also my lab reports says
candida IGG 1.5 IGM 1.1 IGA 1.47
DR Says candida is more in my body...The hives started on the backs of my legs,
then within a week spread throughout my whole body. I get them every night, during the night,
I wake up scratching, they disappear, then I have another batch that come soon after getting up,
which disappear during the morning, another batch usually comes around supper time,
and die away again during the evening. I get them sometimes when I eat,
but it doesn't matter what it is I'm eating. At lunch time, a can get a few but not badly.
The worse ones are at supper time. I get them sometimes when I get hot doing something energetic.
i am taking supplements....feeling little better ...

I also did urine lab test which shows high level of mercury in my body.I dont have mercury tooth filing

Could you please advise me shelley
God bless
thanks Robin