Probiotics, antifungals, and aiding your digestion all kill and reduce parasite and candida’s numbers; killing parasites is exactly the same process as killing candida…you just have to use specific antifungals that kill parasites as well as candida. One that I use regularly is black walnut/chamae rose extract and it does a great job keeping both at bay.
You need to reduce the inflammation and create a beneficial environment for your gut flora to thrive, this is the best way to heal in my opinion.
Lemon juice should bring more benefit than detriment on any stage.
Coconut flour should be fine as long as you are not allergic to it or get a leaky gut reaction.