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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Does A Small Dark Reddish Bump Below Armpit Indicate?

Occasionally I will get a small dark reddish bump (smaller than a pea) below my armpit, and it looks to be filled with blood. It is mildly uncomfortable, so I usually end up squeezing it and some blood comes out, but it leaves a small hole and still looks dark inside. Eventually the hole mostly closes up but leaves a scar and the texture of the skin over that area is left a bit softer and kind of wrinkly. I have had several of these, always under the left arm, near my breast. I know it is not a pimple or ingrown hair. Any idea what this could be and what s causing it?
Thu, 28 May 2015
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Dermatologist 's  Response
Hello respected,

recurrent such kind of lesions in armpit can be simple boils or can be hidradenitis suppurativa, a condition arising because of blockage of sweat glands in the axilla,

Follow general measures like , keep the area dry by frequent swapping, use proper antideorderdant, use antibacterial soap,

and when such bumps occurs , take a course of antibiotics rifampicin 300mg two times a day, clindamycin 300mg two times a day, and course if of 10 weeks, so do consult a doctor for prescription, and keep in mind rifampicin will cause red orange urine, so don't get frightened.

Thank you, get well soon
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What Does A Small Dark Reddish Bump Below Armpit Indicate?

Hello respected, recurrent such kind of lesions in armpit can be simple boils or can be hidradenitis suppurativa, a condition arising because of blockage of sweat glands in the axilla, Follow general measures like , keep the area dry by frequent swapping, use proper antideorderdant, use antibacterial soap, and when such bumps occurs , take a course of antibiotics rifampicin 300mg two times a day, clindamycin 300mg two times a day, and course if of 10 weeks, so do consult a doctor for prescription, and keep in mind rifampicin will cause red orange urine, so don t get frightened. Thank you, get well soon