This may or may not be HSV 1 but if it is, the lesion will likely progress into something else. You don’t need to see your doctor with subsequent outbreaks, no, you just need to have a script on hand to treat future outbreaks as they arise, IF they arise. but if you want to know for sure if this is another outbreak, you could go in to be seen – I just don’t know that it is necessary.
I personally would not recommend Femclear
If you’ve not yet had an outbreak of cold roes, it is unlikely that you will get it orally now, but if he has a cold sore actively, I think for a month or two, I would not kiss him when it is present.