This is so easy, it is elimination by Masking, there is a patent for odor elimination but it is about 37 diff natural oils that do this and you have to spray it on the surface, you cant burn it.
Arnica Montana is an herb that grows wild in the Swiss Alps. Also known simply as "Arnica," it's been used in Europe for hundreds of years for the reduction of bruising and swelling and to shorten the recovery period after physical trauma