If this parasite has begun to establish itself, you will need medical intervention. Sometimes the body's immune system can out maneuver this menace, but if you have a clever strain, this could be problematic, and possibly long term.
My recommendation as an experienced host, is to find a way of obtaining strong anti fungal supplements, or chemo product.
Avoid Antibiotics , as this could be creating a worse situation.
Do everything to boost your immune system, including maintaining healthy levels of electrolytes.