Menu Healthy Lifestyle Diseases & Conditions First Aid Symptoms Tests & Procedures Videos Definitions FAQs ChillsUpdated: 2018-05-25Self-careSelf-care includes drinking plenty of fluids and getting enough rest. For chills accompanied by mild fever, sponging with lukewarm water and acetaminophen (Tylenol) may help. When to seek immediate medical careSee a doctor immediately if: Stiff neck, confusion, irritability, or sluggishness Severe cough, shortness of breath, abdominal pain or burning, or frequent urination When to make a doctor's appointmentMake an appointment to see a doctor if: Fever 100.4 F (38 C) or higher in infant younger than 3 months Fever lasts more than a day in infant between 3 months and 1 year Fever stays above 103°F (39.4°C) after 1 to 2 hours of self-care No improvement after 3 days or lasts more than 5 days © 1998-2022 Mayo Foundation for Medical Education and Research(MFMER). All rights reserved. Terms of Use