Dark Skin On Underarms After Laser Hair Removal?

Underarms are often darker than the surrounding skin since even mild irritation can cause pigmentation called postinflammatory hyperpigmentation.  Shaving, waxing, laser treatments, peels, microdermabrasion, antiperspirants and deodorants can all contribute to the increased pigmentation. 

You should be very gentle in the area, use a mild antiperspirant without fragrance and avoid peels, microdermabrasion and laser treatments.  You could try an 8% glycolic acid solution that will gently help fade the pigmentation.  The less you do in this area, the faster the pigmentation will fade.

The darkening in underarms is common in Asians. The reason is the tendency of skin to get  'post inflammatory hyperpigmentation.' It is the reaction of the skin to any irritation including laser treatments. You should try using a Vitamin C cream in that area. Also try Hydroquinone cream (a bleaching cream) and mild steroid cream like Cortisone over the counter. You have to make sure you do not expose that area to sun as it will become dark again.

Regards

Dr J

Disclaimer:

This answer is not intended as and does not substitute for medical advice. The information presented in this posting is for patients’ education only. As always, I encourage you to see your personal physician for further evaluation of your individual case.