<s>[INST] My husband is a 53 year old relatively healthy man, however he is a smoker.  Thursday evening he noticed a small mass in his perineum, it has rapidly gotten larger and more painful throughout the weekend. He is running a mild fever and says he has been getting some chills??? [/INST] Hello,The painful lump could be superficial bacterial infection of skin. I suggest you apply neosporin like cream over that lesion. Incision and drainage might needed if lesion too large. You can take amoxicillin and clavulenic acid containing tablet for it.If no improvement than consult doctor nearby. Hope I have answered your question Let me know if I can assist you further Regards </s>