I have a large painful (dime size) bump or boil on my penis. i've had similar bumps on my upper inner thighs what could this be? its hard around the base but feels like it has fluid inside. alcohol doesn't burn or irritate it and warm water makes it feel

It : It sounds as though you may have a bacterial skin infection with abscesses or "boils". These usually start out as tender, red areas which become hard and then eventually develop a "head" of white pus. Once this drains, the area usually heals on its own. Most of these are caused by staphylococcus aureas, a common bacteria found on the skin. Occasionally, however, the can be caused by mrsa, the antibiotic resistent kind of staph bacteria. Next time you develop one of these infections, start out by applying warm compresses to the area to help draw the infection out. Then, you should go to your doctor before it "pops" so that they can drain it, test for what bacteria is causing it and be able to treat you appropriately - sometimes with antibiotics, sometimes just with drainage. If you ever develop fever, chills, or feels ill with this infection, call your doctor immediately. You can try and prevent these infections by practicing good hygiene and using anti-bacterial soaps. Your doctor may have other suggestions for prevention. If this does not sound like what you may have, you should call your doctor for a proper diagnosis and treatment. Good luck!