Cold sores, also known as fever blisters, are quite common, affecting up to 80% of the population. They are caused by the herpes simplex virus (HSV-1) and can be spread through direct contact with an infected person’s saliva or skin. Most commonly, cold sores are seen around the mouth and lips, but they can also appear elsewhere on the face or body.
The virus remains in the body even after the cold sore has healed, and it can be reactivated by certain triggers such as stress, exposure to sunlight, or a weakened immune system. When this happens, the virus will travel down the nerve pathways and cause a new cold sore to form.
Cold sores are highly contagious and can be spread through kissing, sharing utensils or glasses, and even through contact with an infected person’s saliva or skin. It is important to practice good hygiene and avoid contact with an infected person’s saliva or skin to reduce the risk of contracting the virus.
In most cases, cold sores will heal on their own within 7-10 days, but there are treatments available to reduce the duration and severity of the symptoms. Some of these treatments include over-the-counter creams, antiviral medications, and other topical treatments.
In conclusion, cold sores are quite common and are caused by the herpes simplex virus. They are highly contagious and can be spread through direct contact with an infected person’s saliva or skin. Most cases will heal on their own within 7-10 days, but there are treatments available to reduce the duration and severity of the symptoms.