When my son gets strep throat, the first symptom is this foul breath that smells like sulfur or rotten eggs. He also gets diarrhea and vomiting with it and a rash on his bottom. See a doctor.
This is common. In many cases, it comes from a high sulfur content in the child's bowels. Seeing your doctor along with proper diet can often alleviate this problem.
the rotten egg smell is caused from a high sulphur content in the bowel. Usually adjustments in diet will cure the problem. also chia seeds will regulate the digestive system.