The bumps are called pyoderma and it's a mild staph infection, fairly common in baby squirrels. Dilute the betadine to the color of weak tea and wipe the babies down with it twice daily until bumps disappear. Leave it on. Don't rinse off.
Also there is no need to add Pedialyte after their feeedlngs if they are taking enough formula. Pedialyte is loaded with salt and, except for immediate treatment of dehydration, is not necessary in their diet.