Scared - new HSV-1 diagnosis. How to manage physical relationship with husband now?

Sorry you're dealing with it. It's a very common virus, one estimate is 2/3 of people under the age of 50 have it.

There is an anti-viral medication that can help with it. Some people use it all the time, and some just during an outbreak. A prescription is required in some places, it's best to talk to your doctor about it. To avoid spreading it to others, don't allow anyone else to have physical contact with the affected area during an outbreak.