I have never shaved in my groin area but I do have episodes of what think is called "Joc itch" accompanied by redness.. and sometimes red/tenderness under the foreskin - washing drying and use of an anti fungal cream has always cured me overnight.
Hi, the shaving could have caused furunculosis or infection of the hair follicles. It could also be cysts, fungal infections, allergies, genital warts and herpes. If there is accompanying swelling, redness, discharge and fever it is most probably an infection. You may need to consult your primary care physician who will examine you and initiate appropriate therapy. Regards.