<human>: Male22Roughly 5ft 10-11inches heightWeigh approximately 155-160lbRecently prescribed Dexedrine (Dextro-amphetamine sulfate) upon diagnosis of Attention Deficit Hyperactivity Disorder.Had sex - woke up next morning with a bump (Cyst, swollen nodule(?)) at the base of the penis where the pubic hairs reside.1week passes - Impatience growing - Had sex again - bump still there.Squeezed bump(uncut/unopened) - turns inflamed (red, swollen)----Bump appears to be roughly 1/3 to 1/2 of an inch in diameter.Considering creating very small incision on bump in order to drain whatever fluids inside. (Concerns: Unknown cause --- Fear of it being cancerous, staph-infection, or indicative of a larger issue) Thought: I wonder if this is related to Vasoconstriction brought on by Stimulant medication.
<bot>: Hi, It may be folliculitis. An infection of the hair root. Consult the dermatologist for the perfect diagnosis and proper treatment. I would recommend you to take a short course of antibiotic like definite 200 mg twice a day along with an anti-inflammatory Chat Doctor.  Apply antibiotic cream. Keep the hygiene in good condition by washing the area with diluted alone. Hope I have answered your query. Let me know if I can assist you further.  