Drug-resistant yeast infections, as the name implies, are yeast infections that have reached a stage where the infection, or the rather the cause of it, has managed to build-up a resistance to the drug-based medication(s) being used at the time. This makes the drug(s) ineffective and allows the infection to prosper.
The yeast-like fungus that causes the symptoms of yeast infection is called 'candida albicans' and can be found naturally in our bodies. It resides in the intestines, the vagina, mouth, anus, skin, under the fingernails, almost anywhere; although the dark, warm, moist areas are it's favorite. Normally, you 'friendly' bacteria keeps it from spreading (overgrowing) and causing yeast infections.
Your good bacteria are an important element in your body's natural defenses. But when their numbers are reduced, your natural defenses suffer, so that the candida fungus has the chance to 'overgrow' thus causing the symptoms of yeast infection. Two of the things that cause this to occur are antibiotics overuse and a lowered immune system. In other words your natural defenses are compromised.
The problem occurs when you use drug-based creams, gels, pessaries, etc., that are applied directly to the localized symptoms, for example, your vagina. After a week or two when your symptoms disappear you come off the treatment. But, for many women, that's only eliminated the local symptoms: there's still the fungus in their intestines. So what happens is that the yeast infection continues to spread and the local symptoms come back again.
So you start-up with the drug-based topical creams again and after 1 or 2 weeks you think you're clear, so you stop. But you still haven't addressed the internal infection, so at some time in the future the infection is likely to return. So you start on the drugs...It's a vicious cycle that over time can allow the fungus to become drug-resistant.
But you can use natural remedies to tackle drug-resistant yeast infections. Natural remedies don't have the negative aspects of drugs, so many more women are turning to them for a better outcome. But of course, as well as the symptoms, you need to address the underlying issues that affect your body's natural defences. Without this it'll be very hard to cure your infection. This may include changing to a healthier diet and making some adjustments to your lifestyle.