Difference between allergies and cold
allergies vs cold :
Allergies and colds sometimes manifest themselves in a similar manner which may sometimes make it very hard to distinguish one from another. While the symptoms may be similar, these are two completely different conditions that are provoked by different kinds of causes and therefore, they need to be treated differently as well.
What is an allergy?
Normally, the allergies are caused by an overactive immune system when the body overreact to hamless substances such as pollen and attacks them viciously, thus causing the system to release certain chemicals such as histamine which are also released during a cold and thereby would display similar symptoms that one displays during a common cold such as sneezing, coughing, etc. there are many kinds of allergies and they are contagious whatsoever.
What is a cold?
The common cold, scientifically referred to as nasopharyngitis, acute viral rhinopharyngitis, acute coryza is an infectious disease which affects the upper respiratory system which is caused by rhinoviruses and coronaviruses. This is the most common disease that can be contracted by humans and it has no cure as the cold is considered as best to be left alone till it resolves itself within a few days.
The symptoms of a cold includes a runny or blocked nose which diffused nasal discharge which is proof that the immune system is fighting the infection, sneezing, minor throat irritations and sometimes even slight fever which also can be accompanied by headaches, loss of appetite, fatigue and muscle aches.
What is the difference between a cold and an allergy?
The symptoms of these two conditions overlap each other making it difficult to recognize one from the other and yet, the causes for these two conditions vary. For an example, allergies occur because of an overactive immune system which mistakes harmless substances for germs whereas the common cold is caused by various viruses such as the rhinoviruses and coronaviruses. Also, while the common cold is an infectious disease, the allergies are not.
The duration of the two conditions too vary as a cold may last from three to fourteen days whereas an allergy can go on as long as the patient is exposed to the allergen. Also, in the case of colds, the symptoms such as sneezing and coughing appear one at a time and may take time to appear whereas in allergies, the symptoms may manifest themselves all at once.
Also during a cold, a slightly yellow mucus discharge can be detected while during allergies, the mucus discharge is often clear and thin. Also, during a cold, fever and aches occur often while one never sees these symptoms during an allergy.
Also, an allergy displays itchy and watery eyes and yet, a cold does not display this often. A cold ususlly occurs during cold and rainy seasons such as winter and yet, the seasonal allergies occur mainly during summer and spring when plants are pollinating.