Sugar feeds yeast and fungus, and it is their favorite food. If you want to cure an intestinal yeast infection then the first thing you must do is give up eating sugar. If you don't then you'll be taking anti fungal drugs to alleviate your symptoms for a very long time. Most sufferers that don't eat a diet that helps to cure their infection will be on oral anti fungal drugs for months or even years.
Another common cause of internal yeast infections is the use of antibiotics. These anti bacterial drugs kill good bacteria, and your body needs these to keep the Candida Yeast Infection it has been kept under control by the good bacteria in your body.
If you're suffering from an internal fungal infection then you need to cleanse your body as soon as possible. The fungus will just keep on feeding until it perforates your intestines, and then toxins from the fungus will enter your bloodstream. You could even be suffering from some of the symptoms already that are caused by a leaky gut. Aching muscles and joints are common, and other symptoms that affect the brain are common as well. These are depression, mood swings and concentration problems.
To cure an intestinal yeast infection you must re-balance the bacteria in your body. At the moment you have too much Candida in your body, and the friendly bacteria can no longer keep it under control. Once the friendly bacteria gets high in numbers and the Candida gets low in numbers you'll soon be fully cured.