Fungal infections.................. are pretty easy to treat but can stay with you for life if you don't treat them properly.
The protocol for a recurrent chronic fungal infection is simple.
#1 kill it
#2 strengthen immune system
#3 limit environmental factors that will contribute to its reoccurrence (IE preventing retained moisture build up or avoiding rolling on the floor in a public shower).
So, the reason why Eddie is recoming Acidophilis is #2, the intestinal probiotic can help keep the immune system strong but will do nothing about an active infection. Other supplements that will help with this would be Ling Zhi (ganoderma lucidum, AKA reishi mushroom don't buy this or or other herbs at GNC their chinese herbs are crap quality. also you want fruiting body NOT mycelium on this herb).
At the same time you want to kill the infection. Dandruff shampoos are basically shampoo + an antifungal so its a cheap easy way to clean the area. Athlete's foot creams are another topical over the counter anti fungal.
If you want to go all herbal their's a great topical antifungal fluid called Yin Care which you can find online. They don't sell that directly from the manufacturer unless you're a medical practitioner though, and if its more than $19.99 a bottle the wholesaler is marking it up.