Fever is a common symptom of most diseases in pediatrics. Fever can lead to discomfort such as depression, increased heart rate and loss of appetite; in severe cases, it can even lead to high fever convulsions. A child with a high fever that does not go away also usually makes mothers anxious and travel to and from the hospital every day. When the body temperature reaches 38.5℃ or more, oral antipyretics are needed. How long does it take for a baby to take Merlin? Usually the medication will take effect in the body about two hours after taking Merlin, and it will help to reduce the fever. The fever can be reduced with the aid of physical cooling method at the same time. If the fever does not improve after a few hours, you should not take Merlin again to reduce the fever without permission, and you need to go to the hospital. Multiple doses of Merlin in a day can cause side effects that are not good for your child’s health. While taking Merlin orally on time to reduce fever, give your child more water so that the heat can be expelled through urine. Drinking water will have some unobtrusive evaporation and will take away a lot of heat from the skin. If the baby is particularly small pay attention to open the package quilt, do not wrap too tightly, can help heat dissipation, of course, according to the temperature conditions in the room to choose how much package, can not again catch a cold. Some babies around one year old are usually held by their parents and held very tightly. The baby’s body surface area is small and half of the body volume will be attached to the parent’s body, which will affect the baby’s heat dissipation and make him continue to stay high, and the baby should be left on his own or sit loosely on the parent’s lap. For fever without a clear cause, while actively giving fever reduction treatment, it is more important to carefully observe the changes in the child’s systemic symptoms and to be able to provide the doctor with clear and reliable medical history information when visiting the hospital so that the cause can be found and treated as early as possible.