What is the best method to get rid of oral thrush?

Antifungals: Antifungal topical treatment such as nystatin(mycostatin) liquid suspension swish and swallow or Clotrimazole troches dissolve in mouth are the initial treatment. If this fails oral systemic treatment with fluconazole(diflucan) 100-200mg./day will usually be curative. Disease in aids patients can be more refractory.

Nystatin: See your doctor, but there are great antifungals like Nystatin that may help.