It would be best to have your Veterinarian take a look at it as soon as possible; your Veterinarian may replace the prolapse (if it is a prolapse - I haven't seen it) and may place a purse string
suture around the anus to prevent recurrence with instructions to give stool softeners for a week or so.
If the problem persists, you may need to get some stool softeners and have a purse string
suture placed
around the
anus but this would need to be discussed with your Veterinarian.