Chili pepper allergy affects up to 3 percent of people and can adversely restrict their everyday life. Spices are one of the most commonly used products and are found in foods, cosmetics and dental products. While spice allergy is considered to be mostly rare, affecting between 2 to 5 people for every 10,000 people, it is most of the times under-diagnosed. Many species have biological functions that improve their ability to result in sensitization.