Hardness of skin after minimally invasive surgery for armpit odor is a normal phenomenon, usually about 3 months to half a year of gradual recovery, you can relieve the discomfort during the recovery period by applying hot compresses. Hardness of skin after minimally invasive surgery for armpit odor is due to the recovery period of postoperative subcutaneous scar, mostly accompanied by numbness and other sensory abnormalities, without special treatment. Generally speaking, if the incision is completely healed for more than 14 days after the surgery, the recovery can be accelerated by applying local hot compresses; avoid strenuous exercise such as lifting heavy objects on the upper limbs for a short period of time after the surgery. Meanwhile, pay attention to the hygiene of the armpit, avoid scratching when itchy, so as not to damage the armpit skin and lead to infection. In addition, we need to pay attention to light diet, avoid spicy and stimulating food, eat more fruits and vegetables, supplement vitamins; choose loose and breathable clothes, avoid overwork, avoid pulling the wound. If the surgical area in the armpit is hard, and at the same time there are redness, swelling, heat, pain and other discomforts, infection cannot be ruled out, and you need to go to a regular medical institution immediately to avoid delaying the treatment.