Even the cheapest $25-30 zapper will work if you use it diligently.

I would recommend Hulda Clark zapper device for killing yeast. Any one will work use it 3 or 4 times a day if you can. Starting shorter times at first until you build up to higher time exposure.

Read as much as you can about how to do this, this website is full of gems of others experiences that you can learn from.

Second reduce sugars and carbohydrates from your diet. If you feel like cheating on your diet, try white rice saturated in extra virgin olive oil. juicing fresh veggies will help greatly as they are rich in enzymes minus the fiber that yeast strives on. Yeast is always present in our body, it is there to help getting rid off stuff that we cannot digest - fiber. When you become exposed to toxic substances the yeast adopts and transform to self preserve it self. That is the reason drugs don't work against it in long run or alone.

There are multiple strategies to prevent trigger of yeast self defense. Keep changing what you are using to kill it every 5 days or so (don't use the same stuff all the time - yeast will become immune to it (except silver - buy a Canadian silver maple coin .9999 silver purity place it in to your drinking water bottle-the water will structure it self to mimic silver - use it spring water only. Silver will react with chlorine water, also do not mix salt and silver)).

Don't go in to full blown treatment as you will get sick like a poppy from the fast kill off - and could develop allergies in a hurry as suddenly you are overflowing with high toxic load. Every treatment should be accompanied with proper detox process (drink lots of water for zapping) if you are using enzyme treatment do not over do the water as it will wash the enzymes out of the system - let it work before flushing it out.) Olive and coconut oils are anti-yeast and detox you as well (I personally feel olive oil have better detoxing property as it triggers liver-gallbladder flushing.)
Also you should try to help to clean your liver with Liver Flush as yeast produces 75 known neural toxic chemicals that will bug down your liver function, they can change your hormone balance as well.

-Enzyme therapy type treatments (Candex is the one I used and it does help - you have to take it on empty stomach)
-Diet rich in Kale and any greens (fresh live juices are preferred) and mostly meats.
-Zapping trough out the day for 21 days sometimes more - then once in a while. There are small Zappers that you tuck in to your sock on the marked - it makes it easy to wear in your sock, but also get hand held unit they cover more territory.
-Digestive enzymes to reduce what is left for the yeast.
- Colloidal Silver - is not just the best anti-biotic but also it helps in healing our cells. The yeast cannot adopt to it. ( Colloidal Silver will kill every bacteria, virus, yeast in your body including the good guys, supplement with good probiotic formula). If making your own Colloidal Silver use only distilled water. Never use chlorinated water, you get toxic substance called silver chloride. Also do not use salt to make it.
-Many supplements and minerals are effective against yeast like sulfur (eggs are rich in it) or NAC amino acid, deficiency in zinc is thought to help yeast growth.
-Probiotics friendly bacteria (yogurt culture, kefir, soil based organism) - and beneficial yeast (beneficial yeast is controversial but we do need some in our body - you want things that will eat Candida yeast for dinner)
-If you suffer from brain fog - Dr. Beck Blood cleaner zapper works well on detoxing your blood stream - plus it will kill yeast spores in your blood (if you can make it your self it is inexpensive, but if you buy it it will get expensive.)

The options are endless.

Best of health, strength, will, wisdom, love and faith.

Gill