Symptoms
One of the main differences between a cold and allergies is the type of symptoms experienced. Colds usually cause a runny and/or stuffy nose, sore throat, coughing, sneezing, and sometimes a fever. Allergies, on the other hand, cause sneezing, a runny or stuffy nose, itchy eyes and/or throat, and sometimes a cough.
Duration
The duration of the symptoms is another difference between a cold and allergies. Colds usually last anywhere from 3 to 10 days, whereas allergies may last several weeks or months.
Treatment
The treatment for colds and allergies is also different. Colds are usually treated with over-the-counter medications, such as decongestants and pain relievers, as well as home remedies, such as rest and fluids. Allergies are usually treated with antihistamines, decongestants, and/or corticosteroids.