In fungal disease you will not get pimple like erruptions, there will be rashes like patches. Have you shaved your hair down there? It is the most common cause for eruptions. Also in summers too much sweating causes eruptions. It is not related with sex. We can suspect
sexually transmitted disease if these symptoms are also associated with any kind of discharge from penis.
Are you having any fever? These erruptions will go away. Keep the area dry and use some antibiotic ointment. It is seof curing. If swelling increases then oral antibiotics will be required.
Next Steps
use sofradex ointment or Cosvate GM
Health Tips
use powder in intimacy areas to keep dry