I just noticed that my daughter has a small pimple (cold sore) like bump on the corner of her mouth. This is the first time for her having this some I'm not even sure if it is a cold sore..she also has eczema. I have genital herpes and I used my finger with my saliva to wipe some toothpaste off her mouth. Now, I'm worried that I gave her the virus. Just wondering if this is possible?