The common cold is a viral infectious disease that infects the upper respiratory system.
Medically reviewed by January Velasco, MD · General Practitioner
The common cold is a viral infectious disease that infects the upper respiratory system.
It is caused by more than 200 different viruses, with rhinovirus as the most common, accounting for 10 to 40 percent of colds. Other common cold viruses include coronavirus and respiratory syncytial virus (RSV), influenza, and parainfluenza. The common cold is also known as acute viral rhinopharyngitis and acute coryza.
Knowing important facts about the common cold can help determine the proper course of care and treatment.
Colds are highly contagious and are the most common infectious disease in humans. The body is unable to build a resistance to all cold-causing viruses, which is why colds are so common and often return.
Adults get an average of two to four colds per year, while young children suffer from an average of six to 10 colds per year.
The common cold may be seasonal, but it is possible to get a cold any time of the year.
Cold symptoms rarely appear suddenly and typically take a few days to appear. These symptoms include the following:
Sometimes a cold is accompanied by a mild fever, weakness, headache, aching joints, and general fatigue. Colds rarely cause additional health problems. And though they are occasionally mistaken for the flu, it’s important to note that flu symptoms are usually much worse.
Viruses like colds cannot be treated with antibiotics. And in most cases just need to run their course. Only the symptoms of the infection can be treated, and not the infection itself.
People who smoke, and have asthma or other respiratory illness may experience symptoms longer.
Make an appointment to see your doctor if symptoms continue after seven to 10 days and if you experience the following symptoms:
These symptoms could indicate a bigger problem, such as the flu or strep throat.
Colds may also pave the way for other infections, such as sinus or ear infections, and acute bronchitis.
A common complication from colds is a sinus infection with a prolonged cough. Conditions for people with asthma, chronic bronchitis, or emphysema may worsen for many weeks even after the cold has gone away.
These important facts about the common cold can help people decide whether they need to see a doctor regarding their symptoms.
The common cold can be can be spread by air droplets transmitted via coughing and sneezing or through contact with infected surfaces. It can be contagious from 1-2 days before symptoms begin until the symptoms have stopped.
A virus can live on a surface for several days. If someone with a virus touches a computer keyboard, door handle, or spoon, for instance, people who touch those same objects may pick up the germs, and get sick if they touch their eyes, nose, or mouth afterwards.
There are certain conditions that may increase the chances of catching a cold. These include:
Since colds are common, usually minor, and with symptoms that are easy to recognize, diagnosing a cold rarely requires a trip to the doctor’s office.
A more detailed diagnosis may be required if symptoms persist after a week, since these may indicate other health conditions.
There is no cure for a cold but there are various ways to bring relief from cold symptoms:
Over-the-counter cold medications include decongestants, antihistamines, and pain relievers, or a combination of the three.
Read the label carefully to prevent any health complications. People with high blood pressure may need the guidance of doctors when taking over-the-counter cold medicine.
It is quite easy to develop certain habits that can help prevent a cold. These include the following:
There are also a number of home remedies to help ease the symptoms of a cold:
Perhaps one of the most important facts about the common cold is that they are usually harmless and clear up without any serious consequences. Symptoms are easy to recognize and may last for a week.
However, health complications may arise, and it is best to consult a doctor if symptoms persist after seven to 10 days. Colds may be seasonal but people can catch them all year round. Highly contagious, colds can spread through droplets and physical contact.
The best way to prevent colds is to avoid catching them in the first place. Take plenty of fluids, practice good hand hygiene, try not to touch your face, and avoid close contact with people with colds. Stay hydrated, well rested, and healthy to prevent infection.
Disclaimer
Hello Health Group does not provide medical advice, diagnosis or treatment.
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