If it comes with high body temperature, do take her to a paediatrician cos it may be accompanied by sore throat.

Use punch and Judy toothpaste

Sorry, about your experience. Baby's breath odour is actually a result of a dry mouth, Poor hygiene, Eating pungent foods. such as garlic and onions and an illness or condition such as sinus infection, tonsillitis, or even seasonal allergies can cause bad breath. To prevent or cure bad breath, brush your baby's gums and teeth, if he has any, with a soft toothbrush specially designed for a baby (You can ask a pharmacy about baby toothbrushes). Or, just wipe his gums and tongue every after feeding with a clean white cotton. To do this, Wash your hands thoroughly with soap. Then Wrap the cotton or cloth around your finger and dip it with a clean water. Gently put your finger inside your baby's mouth. Wipe the upper and then the lower gum pad once. A prevent mouth odour, Offer sips of water after each feeding to wash away any food particles that remain on the gums or teeth