Okay So I Went Swimming Two Days In A Row

Okay so I went swimming two days in a row once in a pool and the day following in a water park for 6 hours about. Afterwords I noticed small red bumps on the tip of my penis almost unnoticeable Doesn't itch nor hurt I have anxiety that it could be herpes but I wonderd if the my swim trunks cause it from irritating my penis head with the net as it felt rough and uncomfortable with my penis scrapping the net from time to time. The bumps are about the size of the tip of a pencil red and in about a group of four near the hole of the penis as I said earlier no pain or itching. Helpppp