Hello! My son (17) has this small lump close to his inguinal area at the inner thigh Strange as it looks like a pimple (red swollen) and hurts as he tells. I am worried as it has the form of a line like a vein/arthery and as i just checked it a moment ago we put neosporin to relief the swollen area and hopefully diminish the pain. At his inner right thigh he also is starting to have a small area like a pimple also (coincidence more or less same position as the other thigh) I think is duw to sweat or even infection because of sweat. What do you recommend? thanks a lot!