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.
Causes Of Red Blotches On Arms And Skin. 1  There are many factors that can cause a change in the skins melanin. Allergens to environmental sources, inhaled substances or physical contact can be causes of red blotches on arms and other parts. 2  Exposure to extreme temperatures, hot or cold, can cause changes in the skins pigment.