Low DoseCDC recommends 7-day for pregnancy & diabetes MonistatÂ® 7 Low Dose. 7 Day Treatment Plan. The original prescription formula offers lower dosage levels and treatment over 7 days. CDC recommends only a 7-day topical treatment for pregnant women and diabetics (consult a doctor before use).
First of all, borax (sodium tetraborate decahydrate) in water produces boric acid and raises the pH. So the studies on boron toxicity that refer to boric acid are absolutely relevant for Borax as well.
Unlike baking soda, which is also a buffer, once you add borax to a pool, it stays there. (The baking soda tends not to, or else to build up to excessive levels, for complicated reasons.) However, when you first add it, it will raise the pH a lot. For this reason, it's also superior chemical for raising pool pH. Use it instead of pH UP (sodium carbonate, soda ash). If you are having problems with your pool akalinity being too high, you should always use borax instead of convential pH increaser.