Burning fat is an all-body process, and you can't target where you lose weight from. Energy is delivered to the muscles via the bloodstream, NOT from being absorbed from surrounding fat stores. Specific exercises will build up the relevant muscles, but will do absolutely nothing about the overlying layer of fat.
What you can do is to continue to reduce your overall body fat through a combination of cardio, all-body strength training and watching your intake, and some of it will naturally come off the armpits.
SparkPeople, SparkCoach, SparkPages, SparkPoints, SparkTeams, SparkDiet, SparkAmerica, SparkRecipes, DailySpark, and other marks are trademarks of SparkPeople, Inc. All Rights Reserved.
SPARKPEOPLE is a registered trademark of SparkPeople, Inc. in the United States, European Union, Canada, and Australia. All rights reserved.