What Can I Put On My Sore Brazilian What Can I Put On A Cold Sore To Help?

What can I put on a cold sore to help? - what can i put on my sore brazilian

I have an overbite and I think I overlooked for a long time or so, and now I have pain in my dog.
What I can for the moment until I can go into a store that tomorrow could help?
I have some hydrogen peroxide, but that seems to feel better only a little.
Shall I enforce it?