Prayers for fast healing!Cold sores and newborns

Hey ladies,
I am so worried. I have my new born and I am getting a cold sore as if this morning. I am scared I don't want to infect the baby. Please help and pray for us and give me advice on ways to get rid of this cold sore. Also have any of you ever had one after you had your baby? I am breastfeeding too so we are always cuddling. Please help!!! Any advice, tips ,story's ,anything positive will be super helpful. I've read up on it so I know it's super contagious and I am doing my best to keep my baby safe. 
T. I. A.