Rectal foam or suppositories to treat ulcerative colitis (proctitis) or for Crohn's disease affecting the rectum. Steroids hayat be classified based on their chemical composition.[52] One example of how MeSH performs this classification is available at the Wikipedia MeSH catalog. Examples of this classification include: Steroids should not be injected https://www.metooo.com/u/672d03c8da295e118f4fd1ad