A reader asked me about this probiotic sold at https://biohmhealth.com.
“BIOHM contains B. breve, L. acidophilus, L. rhamnosus, S. boulardii and Amylase”
It appears to be directed at fungal infection.
Is it good for CFS?
Well, S. boulardii encourages the growth of many bacteria genus seen in CFS that are already overgrown!!
“Saccharomyces boulardii is a tropical strain of yeast first isolated from lychee and mangosteen fruit in 1923 by French scientist Henri Boulard.” DataPunk.Net
A few examples:
For Lactobacillus acidophilus, the same issue
- “Moreover, Ruminococcus obeum, Clostridium clostridioforme, Roseburia intestinalis, Lachnospiraceae bacterium 14-2T and Coprococcus eutactus were significantly higher in Lactobacillus acidophilus ” 
Unless your microbiota shifts happen to land between all of the above bacteria genus, this probiotics is likely more harmful than good for CFS patients. It is high risk without a microbiome analysis to determine suitability first.