i put medicated chapstick on mine, but vaseline or petroleum jelly helps heal it fast too.
Don't torch it!
try putting salt on your sore.
No.
If it's all ready broken into a sore then you're probably not going to get rid of it in 30 minutes. Apply some ice to the sore then some cold sore cream.
take it to the vet
How do you get rid of open sores that been there almost a month.
With a knife.
You can apply over-the-counter creams like docosanol or acyclovir to help reduce the duration of a cold sore. It's also important to keep the area clean and avoid picking at the sore to prevent infection. In some cases, your doctor may prescribe antiviral medications to speed up healing.
Cough drops
by leaking sweet but the best way is to take some sore throat medicine like strepsils
It will likely help soothe their sore throat. See the related question below for more information about how to get rid of a sore throat.
How can I help heal an open sore on my lip that I caused by biting it?