Oral thrush points to a heavy fungal infection, which is a result of many factors, mainly a weakened immune system. The basic step is to eliminate all sugars and carbs from your diet, including natural sugars. Even potatoes and starchy sweet vegetables should be avoided. Fruit is part of the natural Sugar group. Please look up the alkalizing diet and anti candida diet. You should increase your body PH with spirulina, fresh lemon water half hour before eating. Also your mineral status should be monitored as having deficiencies will cause the body to be acid on the long term. You can use the hair mineral and toxic elements analysis every 6 months. Heavy metals should be chelated, slowly, daily, options are chlorella,zeolites, Bentonite clay, humic/fulvic acid, fresh coriander for example. These are all binders so you need to supplement your mineral deficiencies at the same time as binders pull essential minerals out of the body as well. For fungal infections diet might not be enough, besides the strict diet you will need several naturals like lapacho, oregano oil, i liked the nutribiotic defense plus product as well, also caprylic acid in high quantities. You might have overgrowth throughout your body so it might take a while. Enemas daily to clean the lower colon are essential, warm distilled water with Sea Salt . For more info see here:
http://www.debugyourhealth.com/healing-leaky-gut/

Working on your immune system is also essential parallel to these, as immune functions not working properly could prolong recovery time. If you do not see improvements within weeks from the diet and the supplements, i would suspect other issues like bacterial overgrowth and/or parasites.
Bravo is a great product but i would first work on killing some intruders out of my gut and then use it to re colonise useful bacterias, when i am in a more clean state. Also a cheaper option is S. Boulardii which actually starves fungus on a long term. Most peobiotics are good as long as they have at least a few strains and have min 30 million live cultures and contain no natural or added sweeteners or sugars
http://www.debugyourhealth.com/which-probiotic-is-best/