You can make freeze breastmilk pacifier for your baby to chew.
Simply put the breastmilk in teat or pacifer, keep it in freezer and offer to baby when it's frozen.
It can help soothe baby's itching gums during teething.
You can also freeze clean wet cloth for baby to chew.
If your baby is above 6 months, can offer frozen cucumber, carrot sticks too.