Sun protection Archive

Itchy, irritated skin can leave behind stubborn dark patches in unexpected places. Find out what may help restore your skin’s usual tone.

Summer is a great time to take a hike, but it’s essential to make sure you’re prepared for the weather and conditions where you are. Hiking safely and planning ahead will make your trek more enjoyable.

Chronic hives can be hard to control when testing does not reveal a cause. Explore possible triggers and treatments that may help bring relief.

Discover what dark vertical streaks on fingernails might mean, from benign nail pigmentation to signs of a more serious skin cancer.

Athlete’s foot causes itchy, scaly skin on the feet, and the fungus can sometimes spread to other vulnerable areas of the body too.

Repeated underarm boils can have different causes and may need more than home care. Find out what symptoms matter and how doctors approach treatment.

A neck rash that stings and itches can have several possible triggers. The timing, recent exposures and other symptoms may help point to the cause.

As of August 2026, sunscreens in the United States will be allowed to use an ingredient called bemotrizinol. It blocks both UVA and UVB rays and it doesn’t appear to be absorbed into the bloodstream, unlike many sunscreen chemicals.

Climate change has made life-threatening heat waves increasingly common across the globe. Anyone with health issues will have a more difficult time in extreme heat, including older people and people with diabetes, heart disease, asthma, and other conditions. Be prepared by knowing how to identify and treat heat-related illness, and how to plan for hot days.

Discover how steroid creams, hormones, thyroid issues, and other conditions might drive new hair growth and when to seek a doctor’s advice.