Hello,
From the symptoms, these bumps don’t sound like herpes sores which presents as blisters which scab over. It can be HPV genital warts but it can be confirmed only after skin biopsy or presence of HPV antibodies. The skin growth on shaft of penis sounds like a skin tag and there is nothing to be done in that case. However for the redness and itchiness, wash your groin daily and then dry thoroughly by pat drying, not rubbing. Also wear cotton underwear and change them twice a day and do not share other people’s towels. Application of local antifungal cream (terbinafine, clotrimazole, econazole, ketoconazole, miconazole) will help.
But if the symptoms persist then a dermatologist’s evaluation will be the best.
Hope it helps. Take care and please do keep me posted on how you are doing or if you have any additional queries. Warm regards.
I forgot to add that the base and the side of my groin itches a lot. I also have two skin tags in the upper part of my groin and my Dr said it was just regular skin tags and not genital warts.