Does type A influenza cause vomiting?

Written by Wang Chun Mei
Pulmonology
Updated on May 26, 2025
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Influenza A is a very common upper respiratory tract infection caused by the H1N1 influenza virus after infecting the respiratory tract. Typically, patients with this type of flu will experience varying degrees of fever, and the body temperature tends to be quite high during fevers. Commonly, these patients may experience headache, dizziness, reduced appetite, and general weakness during the acute phase of infection. For patients with influenza A, due to the high fever, some may experience gastrointestinal discomfort, including nausea and vomiting. This is mainly because the fever can affect normal digestive functions. Thus, when these patients eat slightly more than usual, they may experience gastrointestinal discomfort. Therefore, it is common for these patients to experience varying degrees of nausea and vomiting, particularly in conjunction with headaches or when they have sore throats and coughs. As long as timely antiviral and symptomatic supportive therapies are administered, once the influenza A virus is effectively controlled, the symptoms of vomiting will also be alleviated.

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Can rhinitis be treated with antibiotics?

Influenza can be treated with antibiotics, but there must be appropriate indications and signs for their use. After influenza infection, the human body may experience a decline in immunity due to the virus, especially a decrease in lymphocytes, which makes it particularly susceptible to bacterial infections. These bacteria are likely to cause bacterial inflammation, with the main symptoms being cough, coughing up yellow phlegm, or having a runny nose with yellow nasal discharge. If such yellow or purulent secretions are observed, they generally indicate a bacterial infection, and it is advisable to boldly use some antibiotics for treatment. Antibiotics that are less toxic, have fewer side effects, and have strong antimicrobial activity should be chosen; such antibiotics often yield very satisfactory results.

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How many days does it take to recover from the flu?

Influenza is primarily a disease caused by an infection of the upper respiratory tract with the influenza virus. It is a contagious disease that can spread among people, leading to an outbreak. Although influenza is a frightening illness, it is a viral infection characterized by being self-limiting, meaning that whether or not medication is used, the patient's condition can improve on its own. Typically, the course of influenza can improve on its own within about 7 to 10 days. At this time, it is sufficient to use medications that reduce fever, relieve pain, or treat nasal congestion and coughing, since patients generally recover on their own after about 7 days, and medication is only needed to alleviate symptoms. (Please use medication under the guidance of a doctor.)

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What foods to eat for the flu

Influenza, also known as the flu, is primarily caused by the invasion of the respiratory tract by the influenza virus, resulting in symptoms such as cough, sore throat, and fever. In traditional Chinese medicine, influenza is categorized as wind-heat lung heat disease or phlegm-heat obstructing the lungs syndrome. It is generally recommended that patients with the flu should consume light, heat-clearing, fire-reducing, and anti-inflammatory foods. It is best to avoid overly oily, salty, or sweet foods. Additionally, consuming foods primarily made from ingredients like dandelion, Andrographis paniculata, and wild chrysanthemum can clear heat, detoxify, reduce inflammation, and have antibacterial effects, providing some supportive benefits for flu treatment.

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Can influenza-specific drugs prevent influenza?

Influenza is a highly contagious respiratory disease caused by the invasion of the respiratory tract by influenza virus. Clinically, it can be divided into type A influenza and type B influenza based on the specific type of virus infection. Clinically, there are actually no specific drugs for influenza. The key is to provide appropriate antiviral medications for symptomatic treatment. For example, if a patient is infected with the influenza virus, commonly used treatments include traditional Chinese medicines or antiviral drugs, which can effectively alleviate the uncomfortable symptoms caused by the influenza virus. Regardless of which type of influenza virus the patient has, the medications used in clinical treatment cannot prevent influenza. Therefore, we recommend avoiding going out as much as possible during the peak season of influenza. If going out is necessary, it is important to take precautions, as influenza is transmitted through respiratory droplets. Wearing a mask when going outside can reduce the chances of getting infected with influenza.

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Routes of influenza transmission

Influenza, also known as the flu, is a disease caused by infection of the upper respiratory tract with the influenza virus. It is characterized mainly by sore throat, cough, and fever, and some patients may also experience nausea, vomiting, and diarrhea. The primary mode of transmission of influenza is through droplets, which occur when an infected person sneezes or coughs, and their secretions, such as nasal discharge, are inhaled by others. Additionally, the virus can be transmitted through the digestive tract and mucous membranes of the skin. If a healthy person comes into contact with the secretions of an infected person, such as through skin contact or orally, they may also be infected. Therefore, it is crucial to isolate from those infected with the flu.