When I was little we lived in the deep woods of Arkansas. My little brother (about 3 at the time) was COVERED in mosquito bites. So much so that the doctor prescribed sulfur tablets. I remember they were half yellow and half white and about the size of a nickel. My mom said the white was cream of tartar. Anyway, we had to take them everyday and I HATED them. It wasn't that they tasted necessarily bad....just different. The mosquitos never touched us after that! Fast forward 35 years and I found myself looking for sulfur tablets for my kids. I finally found them at this little online vitamin store.
You cannot take sulfur pills to repel mosquitoes but you can use the sulfur ingredient mixed with other ingredients to repel mosquitoes. You will mix the ingredient with a teaspoon of cream of tartar and a pint of honey in a pint jar. Take the recipe each day for about two weeks for it to be effective. Read more on http://www.ehow.com/how_5665976_eat-sulfur-mosquito-repellent.html.