Underarm skin is naturally more delicate and sensitive. The underarm (axillae) is made up of skin, hair and glands that secrete sweat. Because of its delicate nature, underarm skin needs regular care and attention through good personal hygiene, eating a balanced diet and adequate fluid in-take. The moist warm conditions in the axillae encourage bacterial growth and these micro-organisms breakdown the fatty acids contained in sweat, which produces the unpleasant body odors. Daily bathing, followed by the use of an antiperspirant or deodorant can help you to manage the malodor.