When to worry about fever with COVID-19

Fever is a very common presentation of COVID-19. It reflects the body's immune response, but its presence alone does not show how severe the illness is. Pay attention to the person's breathing, alertness, hydration, and overall trend as well as the thermometer reading.

A mild illness may cause fever, tiredness, cough, sore throat, or body aches. Some people become more unwell after initially manageable symptoms, so regular checks are useful, especially for children, older adults, pregnant people, and anyone with a long-term condition.

Rest, drink small amounts often, and use light clothing and a comfortable room temperature. Measure temperature with the same method each time and record whether it is improving. Follow the label or a clinician's advice for any fever medicine, and do not combine products that contain the same ingredient.

Stay home while unwell and follow current local advice about limiting contact. Avoid forcing food if appetite is low, but continue offering fluids. Monitor urine output, dizziness, and alertness because these can signal dehydration.

Contact a healthcare professional promptly if fever keeps returning, the person is getting weaker, symptoms are worsening, or drinking is difficult. Seek emergency help for severe trouble breathing, blue or grey lips, new confusion, collapse, a seizure, severe chest pain, or inability to wake normally.

For an infant, an older adult, a pregnant person, or someone with reduced immunity or significant medical conditions, use a lower threshold for calling. If you are unsure whether symptoms are urgent, describe the breathing and level of alertness to the emergency service.

Ask which temperature method and monitoring schedule suit you, whether your medical history changes the treatment plan, and which symptoms should trigger same-day review. Ask how much fluid to aim for and which medicines are suitable with your regular prescriptions.