Hello, I am facing allergic sneezing problem since last few years 8_9 years. I  sneeze when I get in contact with water in early morning, if I get into cold environment or in dust. But major concern is dust as I don't understand at some particular places only I face this problem. I am unable to understand the reason and dust is everywhere even at home but still at some particular places only I sneeze a lot due to dust. Is there any specific reason as in is there any difference in dust nature or dust mites?pls advise