Why do cold sores appear more often during the hot season?

Cold sores are a real ordeal. A seemingly simple health condition that brings pain and discomfort to those who suffer from them. But what are they, and why are they more common during the hot season?

Cold sores are more common than you might think and can appear at any age and at any time, but they are more common during hot weather.

According to the National Institute of Dental and Craniofacial Research of the United States, Cold sores or "fever blisters" are painful, fluid-filled sores that form outside the mouth, around the lips, and are very contagious. These blisters, which cause discomfort and pain, eventually dissolve and turn into small scabs that disappear in about two to three weeks.

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So far it is known, according to the organization, Cold sores are caused by an infection with the herpes simplex virus, usually type 1 or HSV-1, and are lodged in the nerve cells, from where they are activated from time to time, for example, during the hot season. .

The latest estimates from the World Health Organization (WHO) state that 67% of the population is infected with type 1 herpes simplex . However, Only 25% of them develop cold sores .

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The Barrutia Dental Clinic assures that "recurrence can be precipitated by overexposure to sunlight, fever, stress, hormonal changes, or other conditions that affect the immune system (such as immunosuppressive treatments or illnesses), and it usually always affects the same location."

Hence Yes, summer, where the heat is intense, is the most likely time to suffer from the discomfort of cold sores. .

The life cycle of cold sores according to the Doctor Calvo Clinic:

• Previous Symptoms: Itching and, above all, a burning sensation on the lips one or two days before the first physical manifestation of cold sores.
• Appearance of a small, reddish, hardened, painful mark .
• Enlargement of the mark and subsequent conversion into a blister , which contains a liquid.
• Sometimes several blisters emerge and cluster together , forming an “eruption.”
• Over time, the blister eventually excretes fluid and becomes an open wound.
• Eventually, this wound will turn into a scab that, over time, will also diminish until it disappears without leaving a scar or any mark.
• Cold sores can also appear around the lips, nose, cheek, and even inside the mouth .
• Cold sores can usually last from one to two weeks.

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