caprylic acid, undecylenic acid, csilver, pine tar soap
If cocoanut kefir didn't work for you why are you presuming it will work for your baby? Cocoanut is a profoundly rich fat for any baby to digest and could cause fatty liver if your child did digest it. Use cocoanut oil topically where the skin will meter absorption.
Get some Caprylic Acid for baby (health food store) and Undecylenic Acid for you (online ordering). Make the Capyrlic Acid into a paste and place a tiny amount in baby's mouth to float down the system, like 1/4 cap of "Capryl" by SolaRay internally daily. Use Caprylic Acid topically too.
Consider applying topical Silver Colloid especially to the scalp to prevent baby's self-contamination through the scalp, a yeast portal. Rinse baby's mouth with CSILVER. Make your own cheaply with three nine volt batteries and two silver electrodes. Ask at
Colloidal Silver forum how. Grandpa's Pine Tar Soap is also a great scalp wash.
Goat's milk is easily digested and if you can find a good supplier in your area, make kefir with goat's milk for yourself and baby to supplement breast milk. Heat up a thermos bottle with boiling water to heat, rinse and put in goat's milk and kefir starter. Leave cap on loosely for one hour, then refrigerate. This should prevent bacteria overgrowth. God bless and be patient.