Dark spots under the arms occur for a variety of reasons, but always result in embarrassment when wearing sleeveless shirts or swimsuits. Dark spots can make it seem as if you have unsightly hair under your arms, even just after you've shaved.

The pores on your face become enlarged when they are clogged with oil. People with thick, oily skin tend to develop large pores more often than people with normal or dry skin. Large pores can also develop with age because the skin's reduced elasticity causes the pores to dilate. According to DocShop.

Vinegar stands out as one of the go-to solutions for various home remedies. Folk medicine, natural healers and Ayurvedic medicine use hot vinegar concoctions, soaks and baths to address issues as diverse as pain relief, immunity building, detoxification and treatment of skin conditions.

Dryness attacks the hands with a fury, causing shaggy cuticles, itchy palms, finger fissures and flaky skin. Dry hands can also make you look older than your years as this already thin skin thins even more. The best hand creams nourish and heal, as well as provide sun protection.

Stretch marks often occur during pregnancy, weight gain, weight loss and puberty. When they first appear, stretch marks tend to be a shade of red, varying from bright reddish pink to a deep purplish red.

Over time, dead skin cells build up and clog your pores, leading to a dull and tired-looking complexion. Laser skin resurfacing removes these dead cells effectively; but the procedures are harsh on your skin and can leave you red and irritated for hours or even days.

Calendula, a plant extract, has been used throughout history in skin preparations. Calendula is beneficial for dry or damaged skin and also promotes the fast healing and regeneration of the skin thanks to its anti-inflammatory and antibacterial properties. According to YourHealth.

Alcohol is not a corrosive chemical, so ordinary rubbing alcohol does not burn the skin. However, one may get burned if alcohol catches fire and touches the skin. The treatment for alcohol burns depends on the severity of the injury.

Tanning beds are often used for cosmetic purposes, especially among adolescents and young adults. They emit ultraviolet rays, called UV rays. UVA and UVB are both dangerous rays that affect the deep and top layers of the skin, respectively.

Pores are everywhere on the skin and release sweat and oil in the body, report doctors at Advanced Dermatology. While large facial pores are common among teenagers whose hormones cause excess oil secretion, they can continue into adulthood. Heredity and lifestyle contribute to the unsightly pores.

Hot, humid weather can act as a leading cause of acne, a skin condition that affects about 85 percent of those between ages 12 and 25, notes Princeton University's Health Services.

During acne flare-ups, you may sometimes notice that you develop large, painful bumps under the skin on your face. These bumps are called nodules and are a particularly severe form of acne.