no pain and no redness isn't likely to be herpes.
go and be seen and get a proper exam done and go from there.
Also the sores started as small bumps and each time it happen there were less sores. the last time it happen there was just one sore and there is no pain no redness by the sore and they don't itch
have you and your partner discussed std testing? odds are that neither of you have ever been tested for herpes to know who has what so it's well worth talking about and looking into prior testing for. If this is a newly acquired herpes infection genitally, it might come, go and then come back again like this. No idea what testing you originally had but this is well worth returning to your provider for as well as you and your partner both getting type specific herpes igg blood testing done. also ask about a lesion culture for bacteria too. You can get MRSA infections in the genital area that can present like this too as well as many other things.
grace
HSV will not develop leave and redevelop a week later. Advice is to see a Dr when he has the sores. Bumps can be many things often not a STD, but without a exam it is too tough to say what it could be.
On this forum we don't want to assume the partner was cheating or whatever because if we start to get into that area then everything is a STD and the majority of questions I see have no relation to a STD.
Vance you have somehat a point I think that you are pointing into the direction of negative results okay irritaion is not likely to be an std but he started developing sores which me something happen and he's having unprotected sex with someone he was with for some time he/she could of cheating. The person didn't develop the sores until after the irritaion and the next time they had sex it happened. Then the sores on the shaft of the penis. Then the sores came back a week later in different areas. What else could this be it sounds like an STD Vance.
I have to disargee, this does not sound like HSV2. Not sure what it is but does not sound like a STD.
It sounds like HSV2 genital herpes from my understanding. You said that the sores never came but you saw redness and irritation and then the sores developed. I would get testes for HSV2. It sounds like you contracted it from someone that you were having sex with it could be your original partner or someone else. However it takes a while for HSV2 detection because you body has to build up antibodies to fight the virus. On the other hand it would be accurate if you have a culture done by the dicrtor while the sore is present. But to be on the safe side I would get tested and refrain from intimacy until I get my results and follow up with treatment.Good Luck I hope you feel better.