Mouth Thrush

Trash mouth "or" thrush mouth ", is some white lesions or plaques that get in his mouth, and they are like ulcers. The doctor gave antibiotics, and it does not seem to help, but after he finished take drugs, he just returned. It is six months old.
Can anyone help, or have options that we can try? Thank you.

Pineapple! If you hold a piece of pineapple so that it can all suck and do morning and evening, he will clear up! There is something in pineapple that kills the thrush in the mouth without drugs.
N: B for cleaning toys steralising use Milton fluid! NEVER use bleach for ever a baby or child!

Because obviously, it continues to be infected. Scrub all his toys with a light bleach solution. All bottles, pacifiers, holders must be santitized. All pacifiers and blankets for the child can put in his mouth should be santitized. Let him not put anything in his mouth that has not santitized. (Well, except for food of course).
Also called Trash Mouth never heard to say, must feel a lot of people who call it that!

when I had I used live lactic