Hi, I had multiple allergies to chemicals and then I got some LDA shots (Low Dose Allergen) therapy. I have had a total of 6 shots, 2 months a part and now I can use all soaps and shampoos (except the ones with real flowers and plants! Still working on these allergies). I used to feel my chest get tight when I would spray laundry stain spray and my gums were inflamed because I had a fluoride allergy. I don't have any of these problems anymore. My chemical allergies cleared up pretty quickly with these shots. Still working on my food and pollen/inhalant allergies. Most people need 12 to 18 shots and then they are done.