Physical examination: By observing and palpating (feeling) the armpit, a doctor may find enlarged lymph nodes or other armpit conditions.
Axillary lymph node biopsy: Part or all of a lymph node is removed from the armpit and examined under a microscope, sometimes to look for cancer.
Ultrasound: A device placed on the surface of the skin bounces high-frequency sound waves off the structures in the armpit. The signals are converted into images on a video screen, allowing health care providers to see structures inside the body.
Computed tomography (CT scan): A CT scanner takes multiple X-rays, and a computer compiles the X-rays into images of the armpit and nearby structures.
Magnetic resonance imaging (MRI scan): An MRI scanner uses a high-powered magnet and a computer to create detailed images of the armpit and adjacent body areas.
Skin moisturizers: Because skin dryness makes many skin conditions worse, moisturizing the skin can be helpful in many armpit conditions.
Topical steroids: Creams or ointments that contain cortisone, which reduces skin inflammation. Topical steroids can reduce skin itching and irritation in the armpit.
Axillary lymph node dissection: Removal of one or all of the armpit’s lymph nodes. This is often done as part of the surgical treatment for breast cancer. Examining the removed lymph node(s) helps identify whether and how much the breast cancer has spread.
Antiperspirant: Special prescription-strength antiperspirants can help control the excessive armpit sweating of hyperhidrosis.
Botulinum toxin injection (Botox): A doctor may inject Botox into the sweat glands of the armpit; this can reduce the excessive sweating of hyperhidrosis.
Incision and drainage: Armpit abscesses often must be cut open and drained by a health care provider in order to allow proper healing.
Antibiotics: Skin infections in the armpit caused by bacteria can usually be treated with antibiotics.
Endoscopic thoracic sympathetectomy: A surgical treatment for hyperhidrosis, in which nerves that contribute to sweating are cut. In successful cases, excessive sweating is noticeably improved.
Topical antifungals: Fungal infections of the armpit (such as with Candida) can usually be treated with topical creams and ointments containing antifungal drugs.
Skin tag removal: Doctors can remove skin tags using scissors or scalpel, electric cautery (burning), tying them off with string, or freezing them with liquid nitrogen.