What’s a bout of chills but no fever?

Chilliness is a precursor symptom of fever, which may be caused by respiratory infections, gastrointestinal infections, and viral myocarditis, etc. Patients should continue to monitor their temperature, seek prompt medical attention to clarify the cause of the illness, and follow the doctor’s instructions for treatment.
1. Respiratory system infection
(1) Colds: acute inflammation of the nasal cavity and throat is the most common acute respiratory tract infections, and patients often develop when they are exposed to rain, cold, or sudden changes in climate, with coughing, runny nose, nasal congestion, and chills, followed by fever. Patients should pay attention to rest, drink more water, and follow the doctor’s instructions to use ribavirin and other drugs for treatment.
(2) Tuberculosis: a respiratory infectious disease caused by Mycobacterium tuberculosis, which is more common in people with low immunity and poor hygiene. Patients will have symptoms such as cough, hemoptysis, chest pain, chills followed by fever, etc., and can be treated with drugs such as isoniazid, rifampicin, pyrazinamide, and so on.
2. Viral myocarditis: acute or chronic myocardial lesions caused by viral invasion of the heart, limited or diffuse, patients may have chest tightness, palpitations, chills followed by fever, and even shock in severe cases.
3. Gastrointestinal infections: can lead to chills but has not progressed to fever for acute gastroenteritis, patients will also have nausea, vomiting, diarrhea, abdominal pain and other symptoms, should pay attention to the patient to replenish water, if necessary, given to the antimicrobial treatment of ofloxacin and other antibacterial drugs.
The above are only some of the common causes. The use of drugs must follow the doctor’s instructions, not blindly use their own drugs, so as not to cause adverse consequences.