How white patches under the arms occur?

Condition analysis:
White patches under your arms could be caused by vitiligo. White patches on the skin are the main sign of vitiligo. These patches are more common in areas where the skin is exposed to the sun. The patches may be on the hands, feet, arms, face, and lips. Other common areas for white patches are:

The armpits and groin (where the leg meets the body)
Around the mouth
Eyes
Nostrils
Navel
Genitals
Rectal areas.

Instructions:
In TCM, both internal herbs and external liniments, lotions and ointments of various kinds have been used very successfully. Below are a couple of the herbal formulas that address the above patterns. We make these formulas individually here in the clinic.  200 grams (400 capsules of 500 mg each) of formula is typically around 50 dollars plus shipping. Contact us if these formulas are of interest to you. They can be shipped anywhere in the world.  Again, it is critical to do a thorough intake by a trained Chinese physician before taking herbs to determine what is right for you.

Formula 1:  Enriches qi, moves stagnation, quickens blood circulation, resolves toxins, excretes dampness, eliminates patches, expels wind, stops itching.  Herbs: Bu gu zhi, huang qi, bai ji li, hong hua, wu shao she, dang gui, chuan xiong, xiang fu, bai xian pi, zi cao.

Formula 2: for stomach and spleen deficiency.  Herbs:  pi pa ye, ju hua, yi yi ren, gou qi zi, huang qi, bai zhu, shan zha, shan zhu yu, dang shen

Formula 3.  For qi and blood deficiency.  Herbs:  xing ren, lian zi, bei xie, gou qi zi, shan zhu yu, da zao, huang qi, dang gi.

Formula 4.  For kidney and liver deficiency.  Herbs: tu si zi, fu pen zi, gou qi zi, bie xie, xuan shen, long yan rou, bai shao, dang gui.

Formula 5:  For tonifying the liver and kidney, nourishing blood, purging toxins, clearing heat, promoting circulation.    Herbs: he shou wu, dang gui, gou qi zi, chi shao, she chuang zi, di fu zi, bai xian pi, zhi gan cao, huang qi, gui zhi