Colds are caused by viruses, which are easily spread through contact with respiratory droplets from an infected person. Symptoms usually start between 1 and 3 days after exposure. Common cold symptoms include a stuffy nose, sore throat, coughing, sneezing, headache, fatigue, and body aches.
Early Symptoms
The early symptoms of a cold may include a sore throat, runny nose, sneezing, and a feeling of tiredness. These symptoms are usually mild and may not last more than a few days.
More Severe Symptoms
As the cold progresses, more severe symptoms may appear. These may include a fever, chills, coughing, congestion, and body aches. These symptoms usually last for up to two weeks.
Complications
In some cases, the common cold can lead to more serious complications, such as pneumonia, sinus infections, and ear infections. These complications usually require medical treatment.
Prevention
The best way to prevent colds is to practice good hygiene. This includes washing your hands often, avoiding close contact with people who are sick, and avoiding touching your face. Additionally, eating a healthy diet and getting plenty of rest can help to boost your immune system and make you less susceptible to colds.