You will require a proper evaluation and further investigations to find the cause of your symptoms. You may require antibiotics, antacids, antipyretics and cough syrup. Kindly visit the ER and undergo further investigations to rule out the cause of the chills. These following steps may be of help: - Avoid cold food and water, preferably have hot food and water - Don't skip meals have a liquid diet containing soups and progressively increase to solid diet as per how you can tolerate. - Have food rich in vitamin C such as oranges to help build immunity. - Drink plenty of fluids, drink 3 liters of water per day - Do salt water gargling with lukewarm water thrice a day - Do steam inhalation (plain steam) thrice a day and apply vaporub over your chest and nose - Maintain good personal hygiene(Wash you hands regularly) - Rest plenty, body heals while at rest