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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What fruits can people with edema eat?

Influenza refers to a group of diseases that occur when the respiratory system of the human body is infected by the influenza virus, primarily characterized by coughing, sore throat, and fever. However, besides causing respiratory symptoms, the influenza virus can also cause gastrointestinal symptoms such as nausea, vomiting, and diarrhea, and can also lead to a decrease in appetite. Fruits, due to their abundant fluid content and rich vitamins and minerals, are particularly suitable for consumption during influenza when appetite is reduced. It is generally recommended that patients eat some fruits that clear heat, reduce fire, and nourish the yin, such as pears, tangerines, lotus roots, sugarcane, and water chestnuts. These fruits can effectively treat influenza and also supplement the needed nutrients.

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How many days will the flu get better?

Influenza refers to a series of diseases characterized mainly by sore throat, cough, and fever, which occur after the respiratory tract of humans is infected by the influenza virus. We call it influenza, or epidemic flu, which is generally caused by a viral infection and is a self-limiting disease. Usually, it can naturally improve within 7-10 days. Of course, this refers to people with normal immunity, such as young people or those who generally have good physical health. However, elderly and children might experience a prolonged illness, which could extend to 10-15 days, and may even lead to related complications due to influenza, such as influenza meningitis, influenza pneumonia, or even influenza myocarditis. Therefore, special attention should be given to vulnerable groups, including the elderly, children, and pregnant women.

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Can H1N1 flu be treated?

H1N1 influenza, commonly referred to as Type A influenza, is highly contagious and considered an acute upper respiratory infectious disease. Typically, the incidence of this disease is very high during the flu season. It can be transmitted through respiratory droplets. In cases of H1N1 influenza virus infection, appropriate antiviral drugs can be used for symptomatic treatment. Generally, the condition of H1N1 influenza can be effectively controlled. Patients with this type of influenza usually recover within about a week with timely and effective treatment. Therefore, H1N1 influenza is treatable, and the course of the disease generally lasts about a week.

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Can type A influenza heal by itself?

Type A influenza is self-healing, but it mainly depends on the person who is infected with the flu. Generally speaking, regarding viral diseases, our bodies will produce corresponding antibodies against these microbial pathogens, and then use these antibodies to eliminate them. Type A influenza is a cold-like disease caused by an influenza virus, and it certainly can stimulate our bodies to produce antibodies against this type of flu for elimination. For some young and healthy individuals, or those with a generally good health base, type A influenza can completely heal on its own without any antiviral medications. However, for older adults, those who are weaker, or those who have underlying conditions such as high blood pressure or heart disease, type A influenza may lead to severe pneumonia or even be fatal. Therefore, whether type A influenza should be treated, or whether it can rely on self-healing, depends on the condition of the infected patient. Thus, the treatment principles of doctors also vary depending on the different conditions of patients.

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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.