I had 25 mercury fillings for many years. Getting them replaced does expose you to some mercury, but then you can start detox after that.

Chemical sensitivity is often made worse by candida, parasite infection, or nutritional deficiencies. It shows that your body isn't properly detoxifying itself.

Chelation is done with alpha lipoic acid and DMSA.

There are herbs you can take to help kill candida and parasites.

Getting plenty of b vitamins, vitamin c and sulphur is very important. You can try a one month parasite cleanse. After that, you might be less chemically sensitive. Molybdenum supplements may also help.