Doctor insights on:
Sour Body Odor
Different things: I'd like more information. Is this an odor that's been persistent, or just appeared recently? Is this an odor that only you're aware of, or other people have noticed? Do you have any other medical diagnoses (such as diabetes)? Barring common issues such as hygiene or diet changes, some causes of a new sour odor include hormonal imbalance or possible infection.
Food you ate: Often, the food you eat can be smelled through your skins pores, especially if they are high in spices, etc. Try to play detective and note if you are eating anything differently that would make your sin emit odors. Best wishes.
Probably fungal: Infection. Both those areas are dark and can be moist. Giving way to fungal growth and foul odor. Keep area clean and dry. Use anti fungal cream and powders to help the area heal. Call your doctor for proper medication.
Can't say, Try this: Add bicarbonate (sodium bicarbonate) of soda to your bathing routine. Douse it liberally over areas of concern. Rinse throughly. Repeat. Consider massaging wet skin with a thin coating of sesame oil which is naturally antibiotic. Dry throughly. After a week of this daily routine, if the condition continues, add a gentle soap like Dr. Bronner's peppermint, or almond or lavender. Enjoy your softer, sweet-smelling skin.
They: May have a yeast infection. Or it may be something they ate or drank or a medication that makes them smell that way.
Use...: Unscented anti-bacterial soap, under arms, center of chest, crotch, rear. I realize there is some controversy about superficial anti-microbials, but no argument against them has stood up. You should have less odor.See 1 more doctor answer
Perhaps: If your diet is rich in foods like garlic, onions, etc. And other pungent foods then eliminating these may help. If your odor persists and your diet is ok then you might want to to see your doctor and get tested for any metabolic abnormalities.
B.O.: Wash more frequently and use an antibacterial soap. If regular deodorant does not solve the problem, consult a dermatologist. Use a topical antibiotic which works very well in most cases. The problem really is due to a certain type of bacteria eliminated early with with topical antibiotics. If you use regular deodorant use it only at night!
Bromhidrosis: Body odor or bromhidrosis is a very difficult problem. The first thing to diagnose is whether about the odor is really there. Often, the patient feels that he or she smells bad, but objective observers do not believe this is the case. Since body odor generally results from sweat glands in the armpits and groin, these areas can be treated to eliminate bacteria which caused the odor. Dermatologists.
Be kind: Your his friend so you need to tell him. Be direct. Let him know that you care about him and want the best for him but if you notice, others do too. Let him know this makes you uncomfortable but let him know this can be fixed. Usually it is just a hygiene problem solved by washing body and clothes more frequently and using deodorants. Sometimes there can be medical or dental cause.
Can start very early: Body odor, aka bromhidrosis, is caused by several components of the skin flora, most commonly corynebacterium, propionibacteria, and staph aureus. If persistent in spite of deodorants, it can usually be managed with a topical antibiotic known as clindamycin. While body odor is more common starting around 9 years of age, it is well-documented in children that are much younger.See 1 more doctor answer
Find cause to RX: If your odor is caused by poor hygiene, you should be able to improve it by washing body, hair and clothes more regularly and using deodorants. Sometimes it can be from dental problems so if it seems related to the mouth, see your dentist. Sometimes it is related to what you have eaten/drunk so be careful to avoid strong-smelling things even alcohol. If these measures fail, see your doctor.