A child older than 2 has a fever that comes with rash, real discomfort, irritability, listlessness, headache, stiff neck, or repeated diarrhea or vomiting An infant or child has a seizure The child is 3 months to 3 years old and has a fever of 102 F or higher or has had any fever for more than one day. The vast majority of fevers are nothing to worry about, and pass in a day or two. The symptoms of a fever may look like other health conditions. There are many other uncommon causes. What can cause a fever/high temperature? Normal body temperature is 98.6°F (37°C). Fever itself is usually not harmful – in fact, it helps the body's immune system fight off infection. The child is 3 months to 3 years old and has a fever of 102 F or higher or has had any fever for more than one day. As a parent it can be extremely worrying if your child has a high temperature. A fever is a temperature above 100.4℉. Examples are roseola, colds, flu, coxsackie (hand, foot, and mouth disease), chickenpox, fifth disease, along with many others.Most viruses are not dangerous. Generally, children handle fever well. A fever is a high temperature. Many things can cause a high temperature in children, from common childhood illnesses like chickenpox and tonsillitis, to vaccinations. A viral fever is a high body temperature that accompanies many viral infections. What is a fever? A fever is a concern when a child is less than 2 years old or if it persists. However, if your child has a fever, here are some ways to make them more comfortable: Dress them in light clothing, or even undress them to their nappy or singlet and pants. Keep the room at a comfortable temperature by adjusting the heating or opening a window. Fever is a normal response to many illnesses, the most common being an infection in the body. They simply need to run their course over several days. Your child’s fever is higher than 104 F (> 40 C). Some of these will show other obvious signs: Infections with germs called viruses are the most common cause. Viral Infection – This is the most common cause of fever in children. For infants and toddlers, a slightly elevated temperature may indicate a serious infection.Fevers generally go away within a few days. 2-17 years: Above 102 F (38.9 C) taken rectally for children ages 2-3, or taken orally for children older than 3: If your child seems uncomfortable, give your child acetaminophen (Tylenol, others) or ibuprofen (Advil, Motrin, others). The child has a high fever lasting more than 24 hours. Remember that even if your child feels like he or she is "burning up," the measured temperature may not be that high. Here are some circumstances when you should be worried about a fever and seek medical attention immediately: Fever remains the most common concern prompting parents to present their child to the emergency department. Some children can even go as high as 107℉. We’ll go over common symptoms of viral fevers and what causes them. Your child is 3 months old or younger and has a fever of 100.4°F (38°C) or higher. A fever is an increase in your child's body temperature. Get medical care right away. They are not treatable with antibiotics. Sometimes, though, parents should worry. A fever is a temporary increase in your body temperature, often due to an illness. Your child is of any age and has repeated fevers above 104°F (40°C). Cover them with a sheet if they are shivering. Fever has traditionally been defined as a rectal temperature over 100.4 F or 38 C. Temperatures measured at other body sites are usually lower. Fever is commonly caused by a viral infection. A high temperature is the body's natural response to fighting infections like coughs and colds. Fever is generally defined as greater than 100.4°F (38°C). When a child has a fever, parents are often concerned and make a trip to the emergency room if it gets too high. High child fevers of 104 degrees or higher that quickly come down to 100 or 101 degrees with the treatment measures described are also generally not serious and can wait until morning, unless your child is 3 months or younger. What causes a fever in children? Having a fever is a sign that something out of the ordinary is going on in your body.For an adult, a fever may be uncomfortable, but usually isn't a cause for concern unless it reaches 103 F (39.4 C) or higher. High fevers can occur even with an infection that isn't life-threatening. As a general rule, in children a temperature of over 37.5C (99.5F) is a fever. Fever in a young baby can be a sign of a dangerous infection. Call the doctor if your child seems unusually irritable or lethargic or complains of significant discomfort.