Eronile

I am really worried about my smelling disorder on soaps, especially on detergents. This has started since I was 11 years old and until now that I am 32. Whenever I go to the supermarket, I would really go to the soap are and smell the soaps there. I would open the bottles and sniff like a dog. I make sure that I have soaps in my cabinet. I tried to avoid this but it seems the stronger I resist the stronger I want it more. What is this kind of disorder?