For Candida a naturopath from your town will be your best bet.
Multiple Chemical Sensitivity symptoms is a candida symptom, it is related to allergy. When I was finally diagnosed with candida, walking down the soap alley at the groceries was just hectic. Allergies are cause by an overreaction of your immune system. Post on TH1 TH2 are going to be a good read for you. SImply type th1 on the CUrezone search engine and you will learn plenty.