Cheap and easy way to remove blackheads from the nose area is to use Pore Packs: wet it, paste it over the nose and wait 15mins before peeling it off. I think most people use this and there are visible results.
An even more effective method is to use a chemical peel. And I like Sothys Professional Peeling that you can add on for a nominal sum during your Sothys Spa facial. The spa won't sell it to you as its an in-salon treatment. However, it can always be purchased on the internet, 5ml for S$50. Followed on by a fresh pore pack.