Causes of Ishirun (Cold sores and canker sores)

A cold sore is a fluid-filled blister (or a cluster of blisters) that usually appears on your lip or around your mouth. They can also affect your cheeks, nose and chin. OkThe herpes simplex virus type 1 (HSV-1) causes most cold sores.

Are cold sores herpes?

Other names for cold sores include oral herpes, fever blisters and herpes simplex labialis. Even though people use the name oral herpes — and HSV-1 can spread to your genitals — HSV-1 isn’t the same as HSV-2. HSV-2 is the sexually transmitted virus that causes most cases of genital herpes.

How often do people get cold sores?

A cold sore can develop multiple times a year or only once or twice in your lifetime.

Who do cold sores affect?

The virus that causes cold sores can infect people of all ages. Exposure to the virus typically occurs during childhood. Many people catch HSV-1 by the time they turn 5 years old.

It’s possible to develop a cold sore at any age, though the chance of having any outbreak decreases after the age of 35.

Canker Sore

That inside your mouth aren’t cold sores but canker sores also known as mouth ulcers, cold sores and mouth ulcers look and feel familiar but mouth ulcers can be quite painful and also mouth ulcers develop inside your mouth including:

• On your gums.
• Inside your cheeks and lips.
• Under your tongue.
• On the back of your throat.

Canker sores have a variety of causes. But unlike cold sores, they don’t occur due to a virus, and they aren’t contagious. Causes of canker sores may include:

• Injuries to the inside of your mouth.
• Vitamin deficiencies.
• Stress.
• Hormonal changes.
• Food allergies.
• Health conditions that affect your immune system.

What happens the first time you get a cold sore?

For many people, cold sore symptoms are more severe the first time they have an outbreak. You may experience the following cold sore stages:

The first sign is often a tingling, burning or itching sensation on or around your lips. This cold sore early stage begins about 12 to 24 hours before the sore develops.

The area becomes red, swollen and painful as the blisters form.

Over the next two to three days, the blisters rupture and ooze a clear or slightly yellow fluid. This is sometimes called the “weeping phase.”

About four to five days after the cold sore appears, it crusts and scabs over. It might crack or bleed as it heals.

The scab then falls off, revealing skin that may be a little more pink or reddish than usual for a few days. It usually takes one to two weeks for the sore to heal completely.

Research shows that fever blisters, medically referred to as Herpes Labialis and generally known as lip blister or cold sore, have little or no association with malaria.