Remember, you canât out-exercise a bad diet so if youâre eating too many calories each day, it doesnât matter how much walking youâre doing since you will not be able to burn it all off. So, focus more of your attention on the foods youâre eating.
1 Keratosis pilaris causes numerous small, rough, tan or red little bumps around hair follicles on the upper arms, thighs, buttocks, and cheeks.  Keratosis pilaris creates the appearance of gooseflesh, goose bumps, or chicken skin.
Cysts and infections of the skin of the armpit may be caused by shaving or use of antiperspirants (not deodorants). This is most often seen in teens just beginning to shave. Abscesses under the skin may also produce large, painful lumps in the armpit. Other causes of armpit lumps may include: 1  AIDS. 2  Arm or breast infection.3  Cat scratch disease. 4  Cancers such as lymphoma or breast cancer.5  Chickenpox.6  Infectious mononucleosis. 7  Lipomas (harmless fatty growths).his is most often seen in teens just beginning to shave. Abscesses under the skin may also produce large, painful lumps in the armpit. Other causes of armpit lumps may include: 1  AIDS. 2  Arm or breast infection. 3  Cat scratch disease.