Yeast can live inside and outside the body. My yeast issues were in the vulva, always burning, yet the vagina had no discharge or itch and yeast swabs negative. For years doctors gave me no help. Finally I went to a new gyno who said yeast can live inside tissue and had me read up on anti yeast diets. She said I could have the vulva biopsied but it was painful. I read up on anti yeast diets, Dr. Crook's simple plan solved years of misery in 6 weeks, without px med. Basically a detox with no sugar or carbs for 2 months, Zero, even natural sugar as fruit. Plus no fermented cheeses or mushrooms as they breed yeast. The yeast residing in the body will starve to death. After 6 weeks major improvement and feeling great at 2 months. Now 3 1/2 months later am allowed a moderate fruit serving a few times a week and non gluten carbs, just one small serving a day. I am so happy and motivated and now that my sugar withdrawal is over (yes it is addiction and the dying yeast sends messages to the brain to be fed, demands it which lasted me 6 weeks). Yet once the yeast has died off the sugar craving leaves. I can walk by desserts and my mouth no longer waters. Simple, inexpensive and if you are in enough misery you will give it a try. It's a challenge as all detox programs are.