Question

What’s going on with my baby having phlegm in their mouth now?

Answer

The baby is currently on formula milk, previously consuming up to 60 milliliters, but now they can only finish a couple of sips. It’s not a cold, but rather difficulty in coughing out the phlegm. Based on your description, it’s possible that the baby has just contracted a respiratory infection. You can give the baby some ambroxol syrup for treatment.