Sclerotherapy -Injection therapy This procedure may be used on small internal hemorrhoids. A hardening agent is injected into the hemorrhoid, resulting in a loss of circulation that causes the hemorrhoid to shrivel. Sclerotherapy -Injection therapy2016-02-082018-01-18http://pilesblog.com/wp-content/uploads/2020/05/untitled-1.jpgPilesbloghttp://pilesblog.com/wp-content/uploads/2016/02/needle.jpg200px200px