These articles mention many treatments that are used for thrush, but remember you don't have to try them all. Depending on how much pain you're in, other health concerns, and how old your baby is you can start with the remedies with the least amount of side effects first. Find what works for you, since there are different strains of yeast out there. It's also important to keep up the treatment even after you see improvement.
The important thing I want to emphasize for all breastfeeding mothers is how to prevent thrush from starting or reoccurring in the first place. Often, yeast takes over after a disturbance in the body's microbiome. This can happen after antibiotics, so make sure there is a real need if you take them. Probiotics are very important all the time, but especially when dealing with any bacterial or fungal infection.