Get fresh air and sunlight
If you want to be in good health, never underestimate the power that natural forces such as sunlight and fresh air can have on your health. Sunlight is necessary to convert cholesterol into vitamin D in the body. In other words, sunlight keeps your cholesterol levels low. Spending all day in closeted air conditioned environments do not provide sufficient exposure to sunlight.
Pinworms happen to be the tiny white worms that are really common in 
children. Children get affected by pin worms at random and these result in itchy bottom, intestinal dysfunction, etc. They can even be passed from one child to another.
Pinworms can be quite painful and they can be identified through anus or bowel movements. They are usually treated fully with the appropriate medication.The American Academy of Family Physicians offers some suggestions involving the treatment.