How do you make a armpit boil drain?

To drain an armpit boil, first, ensure proper hygiene by washing the area with soap and water. Apply a warm compress to the boil for 20 minutes several times a day to promote drainage. Once it softens, use a sterilized needle to gently pierce the boil and allow the pus to drain out. Afterward, clean the area again and cover it with a sterile bandage; if the boil is persistent or painful, consult a healthcare professional.