Thrush is a common problem for babies born before one month of age, but is often overlooked by young mothers and fathers because it is similar to milk scum, and newborns do not have teeth and do not need to clean their mouths, so it can aggravate thrush in babies, and in severe cases babies may refuse to eat because of painful milk. What is thrush? Thrush is an infection of the mucous membrane of the mouth by mycobacteria. The most common mold that causes thrush is Candida albicans. Most of the Candida is found on the inside of the baby’s cheeks and on the surface of the tongue, forming a white film that resembles milk scum in appearance but cannot be scraped up as easily as milk scum. So, does thrush need to be treated in newborns? Usually, there is no need to go to the hospital for treatment. Especially when thrush is first discovered and has not yet affected your baby’s appetite, try giving your baby a mouthful or two of boiled water to gargle with after breastfeeding or formula. At the same time, mothers who breastfeed their babies should pay attention to changing the breast pads to prevent the breeding of Candida albicans on the nipples; pacifiers, bottles and other items that come in contact with the baby’s mouth should be strictly disinfected to prevent the invasion of Candida albicans attached to the objects. Most thrush in healthy babies heals on its own after the above methods are applied, but some small babies do not necessarily heal on their own, so you should consider going to the hospital for antibacterial treatment. During treatment, the child can also take some vitamin B2 and vitamin B complex supplements. Since small children are prone to adverse drug reactions, parents should not treat their children with antibacterial treatment on their own, either by taking antibacterial medication internally or by applying antibacterial creams externally, but should follow the doctor’s instructions.