I noticed a fan in my house had collected a lot of dust on it and needed to be cleaned. I am allergic to dust, but knew I had to clean the fan. While cleaning, I was experiencing some allergy symptoms ex. an itchy throat. I finished cleaning and took a Claritin right after and my throat problems went away fast! I don’t usually take medicine, but I am glad I had this ready for use. Thanks, Claritin!