For the prevention of baby rash, first, try not to take the baby to visit others or go to public places, as public places have a high density of bacteria and viruses in the air. This can significantly increase the possibility of the baby contracting diseases. Second, the baby's diet should be regular. After introducing solid foods, it's important to ensure a regular intake of vegetables to promote healthy growth and development. A well-nourished baby will naturally have a stronger body and better disease resistance. Third, strengthen care to avoid catching colds, as a cold can decrease the baby's immune function, making it easier for them to catch bacterial and viral infections.