Worldwide prevalence of allergic ailments continues to rise, with growing sensitization rates to common allergens, particularly among children. In the U.S. alone, allergies are sixth-leading cause of chronic diseases, with an annual allergy healthcare cost of over US$ 18 billion,
source https://www.openpr.com/news/2290305/which-product-type-in-the-allergy-care-market-will-hold-larger