You shouldn’t take antifungals with boulardii per a post from the other day because I believe the antifungals will kill the boulardii.
The dry (chap) lips symptom you mentioned is tied to the health of your liver. I’ve had chap lips for years persistantly, and I finally for the first time in ages healed them and they are not chap! What caused this? I started to heal my liver by doing acupuncture and doing a liver cleanse. If you heal your liver, you will notice that this symptom goes away.
The dead candida from the boulardii likely taxed your liver and thats why you experienced this symptom.