If a baby sweats a lot, they are likely to develop prickly heat rash. If the condition is not severe, simply clean the baby's skin with water and then apply prickly heat powder or prickly heat solution. If the condition is severe, it is necessary to take the baby to the hospital and follow the guidance and treatment of a professional doctor. Additionally, it’s crucial to maintain good ventilation in the room, ensure a healthy living environment, and adjust the baby's clothing timely according to weather changes. Avoid over-wrapping the baby. Bathe and wash the baby’s hair frequently to keep their skin clean. Regularly change the baby’s clothes, as well as the bed sheets and quilt covers, and expose them to sunlight often, as sunlight helps to disinfect.