Upper respiratory tract infection symptoms

There are many kinds of common diseases in life. Different diseases have different causes and symptoms, and the methods of treatment are also different. The common methods of treating diseases are mainly drugs, surgery, and psychology. These treatment methods are very effective in stabilizing the patient's disease. So what are the symptoms of upper respiratory tract infection? This disease is also not well understood by many people.

Many people are not very clear about the symptoms of upper respiratory tract infection. Therefore, when treating such a disease, it is necessary to understand all aspects of it, so that when treating the disease, you will know how to best proceed.

Symptoms of upper respiratory tract infection:

1. Common Cold

Commonly known as "cold", also known as acute rhinitis or upper respiratory tract catarrh, is mostly caused by rhinovirus, followed by coronavirus, parainfluenza virus, respiratory syncytial virus, echovirus, coxsackievirus, etc.

The onset is acute, and the incubation period ranges from 1 to 3 days, which varies with the virus. It is shorter for enterovirus and longer for adenovirus, respiratory syncytial virus, etc. The main symptoms are nasal symptoms, such as sneezing, nasal congestion, and clear nasal discharge. It may also present as coughing, dry throat, itchy or burning throat, and even postnasal drip. Symptoms such as sneezing, nasal congestion, and watery nasal discharge may occur at the same time or several hours after the onset of the disease. After 2 to 3 days, the nasal discharge becomes thicker, often accompanied by sore throat, tearing, loss of taste, difficulty breathing, hoarseness, etc. There is generally no fever or systemic symptoms, or only low-grade fever, malaise, mild chills, and headache. Physical examination revealed congestion, edema, secretions in the nasal mucosa, and mild congestion in the pharynx.

When Eustachian tube inflammation occurs, symptoms such as hearing loss may occur. Purulent sputum or severe lower respiratory tract symptoms suggest concurrent viral infection other than rhinovirus or secondary bacterial infection. If there are no complications, recovery can be achieved in 5 to 7 days.

2. Acute viral pharyngitis or laryngitis

(1) Acute viral pharyngitis is mostly caused by rhinovirus, adenovirus, influenza virus, parainfluenza virus, enterovirus, respiratory syncytial virus, etc. The clinical features are itching or burning sensation in the throat, rare cough, and mild pharyngeal pain. When swallowing is painful, it often indicates a streptococcal infection. Influenza virus and adenovirus infections may cause fever and fatigue. Adenovirus pharyngitis may be associated with conjunctivitis. Physical examination revealed obvious congestion and edema in the pharynx, and enlarged and tender submandibular lymph nodes.

(2) Acute viral laryngitis is mostly caused by rhinovirus, influenza A virus, parainfluenza virus and adenovirus. Clinical features include hoarseness, difficulty speaking, pain when coughing, and often fever, sore throat or cough. Physical examination revealed laryngeal edema and congestion, mild enlargement and tenderness of local lymph nodes, and audible stridor in the laryngeal region.

Through the above introduction, we have a good understanding of the symptoms of upper respiratory tract infection. Therefore, when treating such a disease, choosing drug treatment is the best option. This treatment method is very effective in stabilizing the patient's disease, and this treatment method is also easy to use, so it is the best choice.