So you got a 0.4 - am I understanding that correctly? Or did you get a 4.4?
If you got a 0.4, you are clearly negative, and don't need to test at all again.
If you got a 4.4, that's positive, and is most likely oral. The hsv1 IgG test can miss about 30% of infections, so it's possible that your previous tests missed yours earlier. Most people with oral hsv1 never get symptoms, and it's estimated that about half the adult population has it.
This is nothing to freak out about.
Where was this rash you were monitoring?
Let me know more about what your results are - it shouldn't say .4.4, which is what it looks like you typed, and I'll help more.