For those who have taken medication for cold sores... I have a question...

I visited the hospital for a sore throat and cold sore..

Is it true that you should take cold sore medication when you start feeling tingling or itching symptoms for it to be effective?

It used to be a medication taken three times a day for three days.

The place I went today is a medication that is taken every 4 to 5 hours over a period of 3 days.

The medications prescribed may vary from hospital to hospital, but... have you ever experienced any effective medications or products?

I'm curious...