You can buy some povidone-iodine to rub the rotten skin of the Chinese tortoise, and then put it in a cool place to dry. Remember to soak it in water for two hours every day. During this period, feed more animal food and change the water frequently.

The most fundamental way to solve rot skin is to control water quality, tap water must pass through It can only be used after two days of sunlight or after the chlorine has been removed from the water.