A temperature taken using a mouth thermometer (oral temperature) that's 100 F (37.8 C) or higher is generally considered to be a fever. Depending on what's causing a fever, other fever …

Write down information about the fever, such as when it started, how and where you measured it (orally or rectally, for example) and any other symptoms. Note whether you or your child has …

Feb 4, 2025 · Fever treatment: Quick guide to treating a fever By Mayo Clinic Staff A fever is a common sign of illness. But that doesn't always mean it's a bad thing. In fact, fevers may help …

Dec 2, 2023 · Symptoms can come and go or change while a person is sick with rheumatic fever. Rheumatic fever symptoms can include: Fever. Joint pain or swelling — most often the knees, …

Apr 30, 2025 · Learn more about the symptoms, causes, complications and treatment of this strep bacterial infection that causes a red rash, sore throat and high fever.

Jun 25, 2024 · For a baby who's less than 3 months old and has a fever, get medical help right away. Also, seek emergency medical care for a child who has any of these symptoms after …

Early symptoms may include: Lasting fever that starts low and rises during the day. Fever can go as high as 104 degrees Fahrenheit (40 degrees Celsius). Stomach pain. Chills. Headache. …

May 13, 2025 · The primary transmitter of dengue fever is the Aedes aegypti mosquito, known to bite during both day and night. About 1 in 4 people infected with the virus will experience …

Jul 17, 2024 · Warning signs include severe stomach pain, vomiting, difficulty breathing, or blood in your nose, gums, vomit or stools. If you've been traveling recently and develop a fever and …

Aug 13, 2024 · Many people — especially children — get used to hay fever symptoms, so they might not seek treatment until the symptoms become severe. But getting the right treatment …