According to what you said above, children usually change soft needles once every seven days.

Change it every three days.

According to the baby's condition, strictly speaking, it needs to be changed every three days, but it is implemented too frequently and the baby does not cooperate. Generally, there are no particularly strict regulations.

Pay attention to allergies and bent needles.

Note that if the baby is allergic or the needle is bent, it is recommended that you replace it in time.