![]() has been overseas in the last few weeks.Is there anything I need to tell my doctor about my child with a fever? You can look after your child with a fever at home if they: When is it OK to look after my child with a fever at home? has frequent and watery poo (diarrhoea).vomited half or more of their feed for the last 3 feeds.is having fewer than 4 wet nappies in 24 hours.is drinking less than half of their normal breastmilk or other fluid.You should see a doctor if your child with a fever: is not interested in surroundings (lethargic).vomits blood - this may be red or brown.vomits a lot and cannot keep sips of fluid down.complains of a stiff neck or light hurting their eyes.has trouble breathing, has noisy breathing or is breathing fast.is under 3 months old - young babies need a different and more cautious approach.You should see a doctor urgently if your child with a fever: See KidsHealth's page on meningococcal disease for photos of a worrying rash. is unconscious or you can't wake them up properly.has a worrying rash especially one that does not go away when you press on it.has any episodes of irregular or stopping breathing.When should I dial 111?ĭial 111 within New Zealand (use the appropriate emergency number in other countries) and ask for urgent medical help if your child: If your child has already seen a doctor but they are getting worse, go back to your doctor.Ĭall Healthline on 0800 611 116 if you are unsure what you should do. If you are worried about your child, whether or not there is a fever, take them to see a doctor. Read about febrile seizures When should I seek help for my unwell child? Being hot may make your child feel unhappy or uncomfortable, but the high temperature is very unlikely to cause any long-term problems.Ī small number of children have seizures when they have fevers. wrapping a baby in too many warm layers of clothing, or beddingįever is a normal way for a child to fight an infection. ![]() immunisation - this usually causes only mild fever.Other causes of high body temperature include: The body's natural reaction to infection with a virus or bacteria is to raise the temperature inside the body. A bacterial infection is a less common but more serious cause. The most common cause of a fever in a child is a viral infection. The number on the thermometer cannot tell you:Ĭheck out how to use thermometers What causes fever in children? You don't need to do this if your child seems well. If your child is miserable and seems unwell, and feels hot, you can use a thermometer to take their temperature. This condition can lead to heat intolerance.The number on the thermometer cannot tell you what is causing the fever or how sick your child is.įever by itself does not tell you whether your child is seriously sick. If your myelin is damaged, your body’s nerve signals become interrupted. This disease affects the protective covering, or myelin, of the nerves of your central nervous system. The central nervous system is made up of the brain and spinal cord. Multiple sclerosis (MS) is an autoimmune disease that affects the central nervous system. It’s an autoimmune disorder that causes the thyroid gland to produce too much thyroid hormone. Graves’ disease is the most common cause of hyperthyroidism. Thyroxine affects the regulation of your body’s metabolism.Įxcessing this hormone can cause your body’s metabolism to increase, raising your body temperature. Hyperthyroidism occurs when your thyroid produces too much of the hormone thyroxine. ![]() This can cause your body temperature to rise and lead to heat intolerance. CaffeineĬaffeine is a stimulant that can increase your heart rate and speed up your metabolism. These medications work in different ways but can inhibit your body’s ability to cool by inhibiting sweat production. Medications that can affect how your body regulates heat include: One of the most common causes of heat intolerance is medication. Heat intolerance has a variety of potential causes. Read on to learn what causes heat intolerance and what to do about it. Heat intolerance is not a medical condition in itself. Sometimes, you can have a stronger reaction to heat, presenting as excessive sweating, fatigue, dizziness, dehydration, and malaise. This is how your body regulates and maintains a delicate balance between hot and cold. When sweat evaporates off your skin, it cools your body down. When you get too hot, your hypothalamus signals through your nerves to your skin to increase sweat production. ![]() The hypothalamus is a part of the brain that regulates your body’s temperature. Most people don’t like extreme heat, but you might find that you’re always uncomfortable in hot weather if you have heat intolerance. This usually happens because your body isn’t regulating its temperature properly. Symptoms may include headache, dizziness, weakness, cramping, or nausea. Heat intolerance is also called hypersensitivity to heat.
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