Is a cold with fever easily contagious?

Written by Hu Bai Yu
Pulmonology
Updated on May 27, 2025
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Cold and fever, will it be contagious? It is important to identify the cause in such cases. If it is caused by bacteria or other microbial infections, it generally has no contagiousness. However, if the cold is due to an influenza virus infection, there is a certain level of contagiousness. Therefore, it is not possible to generalize whether colds and fevers are easily contagious. It is advised that everyone should go to the hospital for a check-up to determine the cause of the cold and then treat it accordingly. If the cold is caused by a virus or the influenza virus, it is contagious. If it is caused by some bacteria or other microbial infection, it is not contagious. It is also advised that everyone should follow the doctor's guidance and take the corresponding anti-infection medication for treatment and to relieve symptoms. Eat light meals, drink plenty of water, promote excretion, and enhance resistance.

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Written by Li Jian Wu
Pulmonology
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Distinguishing between implantation cold and common cold

The common implantation cold is usually caused by the decrease in immunity triggered by the implantation of the fertilized egg, leading to symptoms of a cold. If a woman's immunity is normal, the frequency of catching a cold during this period is very low. The colds we often talk about can be divided into the common cold and the flu, which should be correctly recognized as having different symptoms. The common cold mainly manifests as nasal congestion, runny nose, sneezing, tearing, and dry mouth, while the flu primarily shows as muscle soreness in the limbs, fatigue, etc.

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Written by Li Jian Wu
Pulmonology
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What should I do if I feel miserable with a cold?

First, it is important to correctly understand the common cold and not to be overly stressed mentally or emotionally. The common cold is a respiratory infectious disease caused by viral infection, leading to symptoms such as nasal congestion, runny nose, dry throat, cough, headache, dizziness, fever, and fatigue. Appropriate symptomatic treatment medications should be primarily used. For instance, antipyretic analgesics can be taken for fever, and it is also advisable to drink plenty of water, avoid staying up late, and eat more vegetables and fruits. If nasal congestion and runny nose are severe, medications that suppress gland secretion can be taken for symptomatic treatment.

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Written by Li Jian Wu
Pulmonology
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How to solve the problem of nasal congestion due to a cold?

If the symptoms of nasal congestion are not too severe, you can use steaming methods, apply a hot towel, or massage acupoints, such as the temples and the Fengchi acupoint. If the cold symptoms are more severe, then some medications will be necessary. You can use medications for nasal congestion or cold medicines. If the virus invades the nasal cavity, causing congestion and swelling of the mucous membrane, and resulting inflammation, some anti-inflammatory medications can be used. Drink more warm water and eat more fresh vegetables and fruits. You can take some traditional Chinese medicine to treat the cold. If there is also fever and thick nasal discharge, some antiviral medications should be taken for treatment.

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Written by Li Jian Wu
Pulmonology
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How many days can a cold heal by itself?

The common cold is a frequently occurring disease in clinical practice, mainly divided into the common cold and influenza. These diseases are infectious and self-healing, and generally, recovery can occur naturally within three to seven days. The primary approach is to drink plenty of water, rest adequately, eat fresh vegetables and fruits, ensure sufficient quality sleep, and choose light, soft, and easy-to-digest foods in the diet. It is advisable to measure the body temperature twice a day and not to worry excessively. Mild cases do not require the use of antibiotics.

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Written by Ren Zheng Xin
Gastroenterology
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What fruits to eat for a stomach cold?

For a cold affecting the gastrointestinal system, it's advisable to consume fruits rich in vitamins, such as pears, watermelons, kale, and kumquats. These fruits can replenish fluids timely and have effects of clearing heat, detoxifying, and enhancing immunity. Additionally, during a gastrointestinal cold, it is important to timely choose medicine that soothes the liver and stomach, and clears heat and dampness for treatment. Other dietary considerations should focus on light foods, eating soft and easy-to-digest foods such as noodle soup, rice soup, porridge, vegetable soup, and drinking plenty of water, while paying attention to balancing work and rest. (Please use medication under the guidance of a doctor.)