If someone is susceptible to fungal and yeast infections ... should he stay away from this specific type of probiotic called saccharomyces boulardii + mos 5billions. i have a feeling it is making it worse. please advise me thank you.

Probiotics: Multiple issues: abdominal pain, allergies, cough, etc. needs evaluation for proper diagnosis and guidance as to use of probiotics.

Unlikely the reason:: There have been reports of fungemia(fungus in the blood stream) from S.boulardii but In most cases, patients who developed fungemia in the setting of probiotic administration had severe comorbidities, were on immunosuppressive medication, had recent surgical intervention, or had recent prolonged hospitalization. Routine fungal infections of skin, vagina,hair or nails are not a contraindication.