The combination of friction, heat, and covered skin may result in the development of a form of acne called acne mechanica. Branding will be hard, but you are a visionary and I know you can do it. You'd smell. These products can be found at your local drug store or pharmacy. However, waiting too long to rinse off after working out can actually lead to a case of back acne. Pimple popping. Pimples can sometimes leave dark spots on the skin after they heal. A comedo becomes inflamed when bacteria infect it. Our team thoroughly researches and evaluates the recommendations we make on our site. Definitely not a bad smell. Unclean water in a bathtub, hot tub or swimming pool. When a small acne pimple breaks open and releases a minute amount of pus, it's unlikely you'll notice any odor. They are large, inflamed lesions. When you visit the site, Dotdash Meredith and its partners may store or retrieve information on your browser, mostly in the form of cookies. National Health Service (United Kingdom). Then bacteria colonize it and it starts to rot, which is why it smells bad, and also why it gets inflamed. Debra Rose Wilson, Ph.D., MSN, R.N., IBCLC, AHN-BC, CHT, How to remove dark spots caused by pimples, Inflamed acne: Causes, symptoms, and remedies, Debra Sullivan, Ph.D., MSN, R.N., CNE, COI, toilet habits (e.g., spending too much time sitting on the toilet), protrusion of the skin during bowel movements, history of a previously drained anal abscess, clear, cloudy, or bloody fluid drainage from the affected area, pain or pressure in the area around the anus. There are treatments, but no cure. A type of bacteria called Propionibacterium acnes (P. acnes) normally lives deep in the oil-producing pores of the skin 4. Prescription-strength antiperspirants or medications may help. "In my case, this is a perfect explanation, since the super-hot NYC summer weather was causing me to sweat, which, coupled with rubbing bra straps, led to a spattering of breakouts. Pastor DK, Harper DS. Occasional nodules can usually be treated at home. Debra Rose Wilson, Ph.D., MSN, R.N., IBCLC, AHN-BC, CHT. J Clin Aesthet Dermatol. Pimples can feel like a ball because they are a type of inflamed blemish containing oil and debris such as dead skin cells and bacteria. Body odor is caused by a mix of bacteria and sweat on your skin. Learn, A variety of health conditions most of which are related to your sinuses can trigger a rotten smell in your nose. You can have a single wart or a cluster of warts. Be sure to shower immediately after you exercise or sweat. Advertising on our site helps support our mission. In some cases, the hair grows back into the skin (ingrown hair). It's the by-product of the bacteria breaking down the sweat. However, because larger acne nodules and cysts contain a greater volumes of pus and bacterial debris, you might briefly notice an odor when they drain. Dermatol Ther (Heidelb). Uncommon causes, including Bartholin cysts. doi:10.1128/AEM.01422-14, Chen W, Zhang X, Zhang L, Xu Y. Don't delay showering after any situation that gets you hot and sweaty, including a sweltering day at the beach or a jog around the neighborhood. International Hyperhidrosis Society. These deliver medication to the spot, prevent sun exposure and irritating bacteria, and discourage picking. Febrile Illness with Skin Rashes. (2015, March 26). The roughness of a razor on sensitive skin can also cause the following: Hidradenitis suppurativa (HS), also called acne inversa, is a chronic disease of the sweat glands. 2016;74(5):945-73.e33. Healthline Media does not provide medical advice, diagnosis, or treatment. Like facial acne, pimples on the anus are not typically painful, but larger nodules can be.