A swelling reducer is a type of medical treatment used to reduce inflammation and swelling. The most common methods of reducing swelling are using ICE, an icebag, or an icepack. ICE, with three letters, is the simplest form of a swelling reducer, as it can be applied directly to the affected area. An icebag, with six letters, is a bag filled with ICE that can be placed on the affected area. An icepack, with seven letters, is a more advanced form of a swelling reducer, as it is a bag filled with a gel that can be frozen and then applied to the affected area.