How to stop a cold sore: mouth blisters treatment

Cold sores on lips are usually nothing to worry about. Caused mostly by the HSV-1 herpes simplex virus, these mouth ulcers usually go away by themselves in the matter of a couple of weeks.

In case of the more rare HSV-2 strain, things can get more complicated. This type of cold sores usually develop after having oral sex with a person infected with genital herpes, who if in the first stages of the infection, is most likely to be unaware of his condition due to the initial lack of symptoms.



There are plenty of over the counter cold sore remedies that can help in relieving the discomfort caused by the blisters and speeding up recovery times.

Antiviral cold sore creams containing aciclovir or penciclovirare are the most common and effective treatment provided they are applied on the sores as soon as the first symptoms begin to appear.

There are also few home remedies that can definitely help in making the cold sore go away faster as well as:

- Try applying a layer of petroleum jelly on your lips as it protects the wound preventing it from getting infected and also helps easing the symptoms by reducing moisture loss.

- Try liquorice! It contains glycyrrhizic acid, which is known to be very effective in killing the virus off. Rather than feasting on liquorice-flavoured sweets, it is recommended to go for the real thing, which is old school liquorice roots. Soak a piece of root into hot water and once it gets cold, apply the water on the wound with some cotton repeatedly throughout the day.

How to treat the flu or a cold

Dos and Don'ts

Always remember, while waiting for a mouth ulcer to go away, to avoid spreading cold sores to other people, you need to follow some simple rules:


- Wash your hands frequently.


  • - Squeeze or pick a blister.
  • - Share/use other people's lipstick/ lip-gloss /lip-balm.
  • - Share/use other people's toothbrush.
  • - Kiss
  • - Share glasses, cups and bottles.
  • - Share spoons, forks and knives.

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