Is it normal for a baby's drool to be bubbly?

Patient's question:

Treatment status: No treatment
Desired help: Is there something missing??

Doctor's answer:

Hello, there is foamy discharge from your child's mouth. It's important to keep them warm and have a light diet. Eat small meals frequently. Additionally, consider whether your baby may be lacking in zinc and vitamin A, and it's recommended to supplement these nutrients for your child. Zinc and vitamin A are the most important nutrients for maintaining normal saliva secretion in babies. If there is a deficiency, it's essential to supplement them. It's recommended to give your child oral zinc gluconate solution and pediatric multivitamin tablets for dietary therapy. Also, make sure your baby doesn't only drink one type of formula. It's advisable to change the formula appropriately to avoid nutritional deficiencies caused by a single formula.