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.
As for Total Alkalinity (TA), you use baking soda to raise that, not 20 Mule Team Borax which is used to raise the pH. Your pH is now probably way too high. As for algae, you need to shock the pool.