How old is your son?
Since when has he had the rectal prolapse? How frequent is the prolapse?
Are there any other associated symptoms, such as incontinence of stool or urine, constipation, or protruding veins?
Is the prolapsed tissue replacable, i.e., does it go back?

I would advice, a detailed examination by a physician to understand the underlying cause of the prolapse.

In the mean while, follow these basic guide lines:

- Ensure that his fluid consumption is high. Incorporate lots of water, juices, milkshakes, soups, and coconut water.

- Prevent constipation. Constipation will cause him to strain and further aggravate the condition.

- Give him 3 dried figs daily. Figs are natural laxatives and bowel cleansers. They help good bowel motility.

- Check any condition that tends to increase intra-abdominal pressure, such as cough or vomiting. These cause further straining and prolapse.