Hi and welcome!
I'm going to agree with Shannon. See a dermatologist and find out what your options are. I have a couple of these as well, mostly on my stomach. So did my dad. I guess fair skinned people are more prone to them. But I'd rather go through getting it removed than have to explain all the time that it's not herpes.
In the meantime, can you cover it with makeup or does it show through?
Your children are adorable. That's why I like this job ... baby pics! All the time, baby pics!