A virus is a microscopic living that gets into your body and makes you feel chilly. The immune system, your body's defense against viruses, fights back when you have a cold virus. As your immune system fights off the illness, your symptoms should disappear in little more than a few weeks. When it comes to allergies, things are different. This response causes the classic symptoms, such... https://www.imchospital.com.pk/blogs-detail/cold-flu-or-allergy-whats-the-difference