So you have had unprotected sex with this new partner?
Im sorry to hear that you got that bad news from your Ex :( And I cant imagined how terrified you must be to tell your new flame that you have STD. But the best now would be just put all cards on the table right away, so you dont put him in a bad situation. And he can decide for himself. Its not like you knew about this, and if he is a good person he will understand this.
My thoughts for you ahead, you should think about how to tackle this problem with medications. Because there are a few alternative things you can handle the situation. 1st choice is go to the doctor and get him to prescribe a medication. The most common once are 1 of these three. Zovirax, Famvir, Valtrex. BUT have in mind that they also comes with great side effects. You should look up these side effects further in details each one of them.
2nd choice: Go the alternative route, I found a video on youtube for you
A few of these alternatives are among them, tea leafs, oil, garlic and Aloe Vera.
There are a pros and cons. The pro about the food, is that you just need to eat a certain type of food for you to contain the virus from ever come out.
(Its not possible to kill the virus at all, and the medicine cannot help you with that either) And the cons of the medicine is that you need to keep your medicine with you all time in case you should have an outbreak. Which I also mentioned earlier that there will be an side effect to it.
I hope this helps to some extent