Not sure if this is the same condition - I took in a male Children's python from a rescue, and he had whitish blisters under his forebody and on some other parts of his body.

I soaked him in water first to hydrate his skin. I added a little baking soda to the water after he had first drank. Other than that I kept him in a dry cage. I applied Neosporin cream to the areas, not really knowing if I was doing the right thing or not. I ended up at a vet, and the vet said to just continue with what I was doing and return if it got worse instead of better.

Eventually, he shed them out. After his first shed, they were smaller, and I kept applying Neosporin and did the occasional soak. The 2nd shed pretty much cleared them.