The treatment of anal swelling needs to be determined by the cause of the problem. Different treatment methods are used for different causes.
If anal bloating is caused by constipation, you can take medicines that promote bowel movement, such as dietary fibre, lactulose, and moderate amounts of laxatives, which are not recommended for long-term use and can easily lead to colonic melanosis.
Hemorrhoids can be treated with medications such as compound cornic acid suppositories.
Rectal mucosal prolapse, pelvic floor hernias need to be treated by surgery.