Im worried this is herpes?? Is it jock itch?

Hi, Im worried that this could be herpes. I recently tested clear on sexual health tests. I Chaff quite easy as I have big thighs. I had this a few weeks ago but more in the groin area but now its affecting the thigh more and there seems to be blisters or infected pimples? I did recently shave so could be that. My thigh is very sore and as you can see red and its uncomfortable. I dont think it is herpes but im stressing.

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It looks like herpes outbreak.