Skin allergies and contact dermatitis Archive

Many prescription creams, gels, and pills can ease the redness, swelling, and pimple-like bumps of rosacea. A 2026 scientific review suggests ivermectin 1% cream (Soolantra) and encapsulated benzoyl peroxide cream (Epsolay)—are the most effective topical options for bumps.

Nail fungal infections affect up to 14% of the adult population. While completely curing these infections is difficult, the right treatments can discourage the problem from spreading and make your nails look better.

Lingering heat waves have brought warnings about recognizing and preventing heat-related illnesses. Heat rash, while not dangerous itself, can signal heat exposure that may lead to more serious conditions. Here's how to avoid and treat it.

A major review found that oral antihistamines had little effect in reducing atopic dermatitis (eczema) symptoms—and that first-generation (sedating) antihistamines may increase cognitive risks. The findings suggest that oral antihistamines should not be used routinely to treat eczema.

Even after using a certain deodorant for years, people can develop allergic contact dermatitis to that product. Individuals who suddenly develop redness, itching, or a rash in their armpits should stop using their deodorant and switch to another product.

A dermatologist can confirm actinic keratosis and explain what to expect during evaluation, treatment and follow-up for sun-damaged skin.

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

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

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

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