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Hello from JustAnswer.
The first picture is not in good focus, so these comments are based upon the remaining four images, two of which are identical. In addition, there are no pictures of the scrotum.
These red spots do not look herpetic. They look most likely to be a small area of inflammation, and if they are already a little milder and slightly smaller, that is a good sign. It is possible to get minor irritation/inflammation from friction, but it is more common that it is a reaction to something to which the skin has come in contact. It also would be unusual for the scrotum to be affected by friction that occurs during penile-vaginal sex, although it would be possible if there was a specific action affecting the scrotum. The most common substance to which men can react are residual on the skin from certain scents or cleaning products, which can be either personal or laundry cleaning products.
Since the spots are already slightly better, it is likely that they will resolve without any interventions beyond good cleaning.
If I can provide any clarification, please let me know.
Please let me know if I can provide any further information or if you had intended to attach pictures of the scrotum.