If you spot these red dots on your skin, you had better know what they mean

• like sandpaper, usually on upper arms, thighs, or cheeks.

• What they are: A totally harmless genetic buildup of keratin blocking hair follicles. It affects up to 80% of adolescents and many adults, often improving in humid summer months.

• What to do: Moisturize with urea, lactic acid, or salicylic acid lotions. No medical treatment is needed unless the texture bothers you.

5. Hives / Urticaria (Intensely Itchy Welts)

• What they look like: Raised, red, or skin-colored welts that come and go within hours. They are intensely itchy.

• What they are: An allergic