So I just took a fleet enema for the first time because I was very constipated. I held it in and it almost immediately caused me to have bowel movement. I figured that because of this I let go of the enema too soon so I injected a few more times but after nothing really came out except for the enema itself.

I am experiencing rectal stinging/ discomfort after taking it almost an hour ago. When will the pain subside? Did I take this medication incorrectly? How am I supposed to use it?