Respiratory infection symptoms

Written by Li Jian Wu

Pulmonology

Updated on April 04, 2025

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The symptoms of respiratory infections vary among individuals. Common clinical symptoms include fever, headache, fatigue, swollen throat, coughing, runny nose, sneezing, tearing, as well as difficulty breathing, phlegm, chest pain, and body aches. Some may also experience nausea, vomiting, and even sleep disturbances. Severe cases can lead to oxygen deprivation due to inflammation, manifesting as cyanosis of the lips, and increased and rapid breathing.

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Written by Hu Bai Yu

Pulmonology

1min 11sec

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How to treat upper respiratory tract infections

If an upper respiratory tract infection is severe, it is necessary to take anti-inflammatory and anti-infection medications under the guidance of a doctor. The first and most important step is to identify the cause of the infection under medical supervision and then use medication accordingly, which is crucial. Additionally, it is advised to support the treatment by drinking more water, resting adequately, avoiding overexertion, and eating a bland diet without spicy, greasy, or cold and irritating foods. An upper respiratory tract infection may also be accompanied by fever. If the body temperature exceeds 38.5℃, fever-reducing medications should be taken. Moreover, it is important to drink plenty of water to promote excretion. If the body temperature is between 37.5℃ and 38.5℃, physical cooling methods can be used. It is also recommended to rest well, frequently ventilate indoor spaces, and ensure air remains fresh and circulating.

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Written by Wang Chun Mei

Pulmonology

53sec

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Is an upper respiratory tract infection easy to recover from?

Upper respiratory tract infections are clinically categorized as respiratory diseases and occur at a very high frequency. Patients with upper respiratory tract infections generally recover easily as long as their immune system is in good condition. Most upper respiratory infections are caused by viruses, and patients with decent immune function can often recover without medication within about a week. However, some infections in the upper limbs, which may be caused by bacteria or mycoplasma, present various clinical symptoms such as nasal congestion, runny nose, fever, and cough. Patients like these generally require appropriate anti-infection treatment, as well as medication to combat the mycoplasma, and their recovery might take slightly longer.

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Written by Han Shun Li

Pulmonology

50sec

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Upper respiratory tract infection current treatment

Upper respiratory infections are the most common infectious diseases, most of which are caused by viral infections, with a minority being bacterial infections. Regarding the treatment of upper respiratory infections: If it is a bacterial infection, sensitive antibiotics should be chosen for treatment. Commonly used antibiotics include penicillins, cephalosporins, macrolide lactones, etc. If it is a viral infection, there are currently no particularly effective antiviral drugs for treatment. However, if chosen appropriately, some antiviral drugs can still be effective. Treatment for upper respiratory infections also involves symptomatic management, such as using antipyretic analgesics for fever, and cough suppressants for coughing, etc. (Please use medications under the guidance of a doctor)

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Written by Hu Bai Yu

Pulmonology

1min 14sec

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Can respiratory infections heal on their own?

Respiratory infections can be self-healing, usually in individuals who are physically strong or have a robust immune system. During an infection, drinking plenty of water, resting adequately, timely replenishing vitamin C, eating fresh fruits and vegetables, exercising appropriately to enhance physical fitness, and dressing appropriately according to the weather can potentially lead to self-healing. However, for elderly and frail patients, the self-healing rate from respiratory infections is very low. They should be treated under the guidance of a doctor, actively taking anti-inflammatory and anti-infection medications, as well as cold remedies. It is also important to ventilate rooms frequently to maintain fresh air circulation indoors, avoid overly dry environments, and keep indoor temperature and humidity at comfortable levels. Additionally, it is advisable to avoid spicy, greasy, cold, and irritating foods, and not to consume seafood to prevent exacerbating cold symptoms by promoting the production of phlegm.

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Written by An Yong Peng

Pulmonology

54sec

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Can you eat oranges with an upper respiratory tract infection?

Upper respiratory infections can include orange in the diet; these infections are usually viral, and typically there are no specific therapeutic drugs available, only symptomatic treatment is provided. Additionally, patients should also consider eating some fruits and drinking more plain water while maintaining a light diet; fruits like oranges and apples are suitable. Furthermore, patients with severe symptoms of upper respiratory infection may also need to use some cold medicines to alleviate their symptoms. Generally, upper respiratory infections are self-limiting, and patients can gradually recover with symptomatic treatment and dietary adjustments mentioned above. However, it is important to note that some upper respiratory infections may be bacterial, such as acute suppurative tonsillitis, which is a bacterial infection and requires anti-infection treatment.