I am 17 years old and I wanted to know if I should be concerned about the inflamation on the urethra of my penis. I used to masturbate quite frequently (3-4 times a day) and I noticed red kind of swelling on my urethra, It wasnt really painful except for when I tried to pop it, then it became really irritated and itchy like. I took some antibiotics to make it go away, but soon afterwards, maybe a day or so, my right lymph gland on my groin had swelled. I need to know what this is and what to do about this. Please Help! Thanks.