One home remedy for oral thrush is a warm saltwater rinse, according to MedicineNet. Another treatment for oral thrush is rinsing with a 3 percent hydrogen peroxide solution. Use a soft toothbrush to brush the teeth.
Gentian violet is also an alternative treatment for oral thrush, explains WebMD. This over-the-counter remedy is a natural dye that kills bacteria and fungi. If the person with thrush wears dentures, the dentures need to be scrubbed every night and then soaked in denture cleaner. For a baby with thrush, clean all bottles and pacifiers regularly, and massage the baby's gums with a wet clean cloth.