This has often been discussed on a candida forum I belong to. People may experience healing reactions to good healing foods/supplements, which can mimic allergic type reactions. Then they may think that foods/supplements like this simply don't agree with them and they no longer consume them. Yet that maybe a mistake. Because reactions can mean a correcting process is underway inside the body as it starts to shift toxins out and heal itself.

It's hard to tell because at the sametime, mercury and/or candida can make a person extremely chemically sensitive and people can react easily adversely to foods/supplements when they are like this as well.....but it's not usually wise to avoid good foods, when those foods maybe the very foods that are helping to shift toxins and heal. Supplements the same. Unless the reaction is really concerning (as in redistribution of mercury).

Reactions to garlic could be die off and/or mercury/metal movement. Garlic not only acts as a natural and pretty powerful antifungal, but it can also mobilise metals. I have had many a reaction to garlic that has been both die off and metal related. It certainly does have an effect with metal. Some people actually find it helps them detox mercury. Some feel it makes their symptoms too bad, so they avoid it. One dental outfit I know about that is biologic, recommends garlic to help detox mercury.....

It can bounce it around faster, but it may not remove it so well. So in that case it maybe a risky thing to use. Though some people respond very well to it, others may not.