An upper respiratory infection is the umbrella term for inflammation of the nose, sinuses, nasopharynx, throat and voice box caused by viruses or bacteria. The common cold, sinusitis, pharyngitis, tonsillitis and laryngitis are the most familiar examples of this group. Although most clear up on their own within a few days, some need treatment, so telling them apart correctly matters.<\/p>\n
The upper respiratory tract is the part of the airway that inhaled air passes through before reaching the lungs. It includes the nasal cavity, the air-filled sinuses around the nose, the area behind the nose (nasopharynx), the throat behind the mouth (oropharynx), the tonsils and the voice box (larynx), which contains the vocal cords. The middle ear is connected to the nasopharynx through the Eustachian tube, so it is often affected by these infections too.<\/p>\n
This region is the first to meet germs from the outside world. Nasal hairs, a layer of mucus and tiny hair-like cells (cilia) work to trap germs and clear them out; when these defenses fall short, microorganisms settle in the lining and cause inflammation. The condition takes different names depending on the area involved:<\/p>\n
These infections are among the most common reasons for visiting a doctor. Adults catch a few colds a year on average, while the number can be much higher in children at daycare and school. They become more frequent in fall and winter, when people spend more time indoors.<\/p>\n
The great majority of cases are caused by viruses. Rhinoviruses are the most frequent cause of the common cold; coronaviruses, influenza viruses, adenoviruses, RSV and parainfluenza viruses are also common. Bacteria are responsible less often; the most important is group A beta-hemolytic streptococcus, which can cause tonsillitis. A secondary bacterial infection of the sinuses or ear can also develop after a viral infection.<\/p>\n
Germs usually spread through droplets released when an infected person coughs or sneezes, or when hands contaminated with these droplets touch the eyes, nose or mouth. Surfaces such as door handles, phones and toys can play a role in transmission.<\/p>\n
Factors that increase the risk of infection include:<\/p>\n
Symptoms usually begin one to three days after exposure to the germ and vary depending on the area involved. Common complaints include:<\/p>\n
With a cold, symptoms usually build over the first days, then ease gradually and mostly clear within 7\u201310 days. The cough, however, may last two to three weeks in some people. Nasal discharge that thickens and turns yellow-green over time does not, on its own, mean a bacterial infection; it is common in viral illnesses as well.<\/p>\n
Some signs point more toward a bacterial infection. Nasal discharge and facial pain lasting more than ten days, or worsening again after starting to improve, suggest bacterial sinusitis. A sudden high fever without cough or runny nose, a severe sore throat, white patches of pus on the tonsils and tender lymph nodes in the neck may suggest strep tonsillitis.<\/p>\n
Because young children cannot describe their complaints, symptoms are noticed through changes in behavior. Fussiness, frequent crying, poor appetite, difficulty feeding, frequent waking and pulling at the ear are common signs. In babies, a stuffy nose can make feeding much harder. A barking cough and hoarseness that worsen at night suggest croup, while ear pain with fever suggests a middle ear infection.<\/p>\n
Flu usually starts suddenly, with high fever, marked muscle aches, chills and severe fatigue. A cold begins more gradually, nasal symptoms dominate and the person can often keep up with daily activities. Flu deserves particular attention because it can lead to complications such as pneumonia more often, especially in older adults and people with chronic illnesses.<\/p>\n
Diagnosis is usually made by listening to the complaints and performing an examination. During the ENT (ear, nose and throat) examination, the inside of the nose, the throat, the tonsils and the eardrums are evaluated and the lymph nodes in the neck are checked. If hoarseness persists, the voice box can be examined endoscopically.<\/p>\n
When needed, supporting tests are used:<\/p>\n
With frequently recurring infections, underlying factors such as allergy, enlarged adenoids, a deviated septum, reflux or an immune problem should also be investigated. Patients traveling from abroad with recurrent infections may find it helpful to bring previous test results, imaging and a list of the antibiotics and other medications they have used.<\/p>\n
For viral infections, treatment is supportive: the aim is to ease symptoms while giving the body’s own defenses time to clear the infection. Antibiotics do not work against viruses, and unnecessary use leads to side effects and antibiotic resistance.<\/p>\n
Studies on the effect of vitamin C, zinc and various herbal supplements on the length of an infection have produced mixed results. Because some of these products can interact with medications, people with chronic illnesses in particular should check with their doctor before taking supplements. A balanced diet, regular sleep and avoiding smoking remain the basic steps that support both recovery and the immune system.<\/p>\n
Medications such as acetaminophen (paracetamol) or ibuprofen can be used at the appropriate dose for fever, headache and sore throat. Aspirin should not be given to children because of the risk of Reye’s syndrome. Decongestant sprays give short-term relief from congestion but should not be used for more than a few days. Cough and cold syrups should only be used in young children after consulting a doctor.<\/p>\n
Antibiotic treatment is needed for conditions such as strep tonsillitis or bacterial sinusitis. Antibiotics should be taken for the full period the doctor recommends, even if the symptoms go away. For high-risk patients diagnosed with flu, antiviral medications may be considered in the early phase of symptoms.<\/p>\n
Although many medications can be used safely during pregnancy, the choice should always be made with a doctor; supportive measures such as saline rinsing and steam come first during this time. In older adults and people with heart, lung or kidney disease, infections can be more severe; prolonged fever, shortness of breath or reduced fluid intake should be evaluated without delay. People with high blood pressure are also advised to consult their doctor before using certain decongestants and cold medicines.<\/p>\n
Surgery is rarely needed to treat acute infections. However, for conditions such as frequently recurring tonsillitis, enlarged adenoids causing repeated middle ear infections or chronic sinusitis that does not respond to medication, tonsillectomy, adenoidectomy or endoscopic sinus surgery may be considered. Complications such as an abscess around the sinuses or tonsils may also require surgical drainage.<\/p>\n
Although an upper respiratory infection usually passes without problems, complications can develop in some patients. Examples include middle ear infection, bacterial sinusitis, an abscess around the tonsil, asthma flare-ups and spread to the lower airways causing bronchitis or pneumonia. Babies, older adults, pregnant women and people with chronic illnesses should be monitored more closely.<\/p>\n
The most effective ways to prevent infection are washing hands often and properly, not touching the face with unwashed hands, covering the mouth when coughing or sneezing, avoiding close contact with sick people and staying away from crowded places while ill. Seasonal flu vaccination is recommended for people in high-risk groups.<\/p>\n
See a doctor without delay in the following situations:<\/p>\n
Yes, viral ones in particular spread easily through droplets and contact. People are usually most contagious in the first days after symptoms begin. Hand hygiene and covering coughs and sneezes greatly reduce transmission.<\/p>\n
No. Most sore throats are caused by viruses and do not benefit from antibiotics. The decision to use antibiotics is based on the examination and, when needed, the result of a strep test.<\/p>\n
Children who have just started daycare or school are meeting many viruses for the first time, so having several infections a year is common. However, if infections last a very long time or come with frequent ear infections or snoring, an examination for enlarged adenoids and allergy is recommended.<\/p>\n
The real cause of infection is viruses and bacteria; cold weather alone does not cause illness. However, spending more time in closed, crowded spaces in winter and dry air weakening the nasal lining’s defenses make transmission easier.<\/p>\n
Most people can return to daily life once the fever has gone and they feel generally better. In strep tonsillitis, contagiousness drops quickly after antibiotics are started; the timing of a return to school is based on the doctor’s advice.<\/p>\n
Op. Dr. Tayfun Demirel, ENT specialist, evaluates patients with sore throat, sinusitis, hoarseness and ear complaints through a detailed ENT examination at the practice in Ata\u015fehir, Istanbul. Treatment is planned individually after determining whether the infection is viral or bacterial and whether there is a cause behind frequent recurrences. Please contact the clinic to book an appointment. This article is for informational purposes only; an in-person examination is required for diagnosis and treatment.<\/p>\n","protected":false},"excerpt":{"rendered":"
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