Make a thick paste with 1 tablespoon milk, 1 tablespoon rose water, and enough powdered orange peel. Scrub the paste gently into your armpits, then let it on for about 15 minutes before washing with cold water. Repeat this process two to three times each week. You can also use an exfoliating glove or washcloth and apply it to your arms like a mask. For an even more intense result, try adding 2-4 drops of tea tree oil to the mixture. It will help cleanse your skin while protecting against bacteria that could lead to infection. If you prefer, you can also use sugar to exfoliate your arms. Just mix 1 teaspoon sugar with 1 teaspoon lemon juice and apply as a paste. Let it dry and then rinse off with warm water. These are just some of the many ways you can exfoliate your arms at home. The most important thing is that you don't overdo it because exfoliation is important for keeping your skin healthy and clear of bacteria, but you also don't want to leave any residue because that would be uncomfortable next time you go to the beach or in front of the mirror.