Skin and hair health Archive

A 2025 study suggested that people with certain chronic conditions were more likely to experience side effects after cosmetic injections with botulinum toxin (Botox, Dysport, Xeomin).

About half of Americans have herpes simplex virus type 1, which causes cold sores that can recur periodically. The virus can't be eliminated, but topical and oral treatments can help. In addition, people can avoid cold sore triggers such as stress or fatigue.

Autoimmune disorders that may involve skin symptoms include psoriasis, lupus, scleroderma, dermatomyositis, vitiligo, bullous pemphigoid, alopecia areata, lichen planus, autoimmune thyroid disease, celiac disease, rheumatoid arthritis, and sarcoidosis.

Toasted skin syndrome is a rash that develops in a fishnet-like pattern from direct, chronic, low-level exposure to heat sources such as laptops, electric blankets, heating pads, and heated car seats. The heat dilates superficial blood vessels under the skin, causing the rash.

Itchiness of the breasts or nipples isn't common, but can signal conditions both harmless and serious. Minor reasons for itchiness across the bra area include eczema, psoriasis, exposure to soaps or detergents, trapped moisture, and pregnancy and breastfeeding. More serious causes include infections, breast surgery, radiation treatment, and certain rare forms of breast cancer. Any skin changes on the breast that don't improve over weeks should be evaluated by a doctor.

A 2025 Finnish study found that rosacea often goes undiagnosed in people ages 70 or older. Researchers say this might be due to busy physicians with limited awareness of rosacea or patients' own embarrassment or unwillingness to seek treatment.

People can take several measures to protect against winter dry skin, such as using an indoor humidifier, washing carefully, following a moisturizing routine, and covering exposed skin when outdoors.

Dermaplaning is a technique that removes hair and dead skin cells from the face. Dermaplaning uses a type of razor or scalpel. When performed properly, the technique is safe, though it can nick facial skin.

Red light therapy involves using devices that emit red or near-infrared light aimed at the skin. It is believed to reduce inflammation and boost production of collagen. Research suggests it can improve an array of skin problems, including fine lines, dark spots, redness, slow-healing wounds, scars, and acne. Unlike ultraviolet light, red light therapy isn't associated with greater risks for skin cancer. Scientists are still determining the optimal doses of red light therapy for various skin conditions.

Toenail fungus, ingrown toenails, and brittle or cracked fingernails are common nail problems that affect older adults. They can make hands and feet unsightly and sometimes even painful. Treating these problems and preventing them from returning often takes a trial-and-error approach, diligence, and patience. Strategies include a combination of home remedies, over-the-counter medication, and good hygiene and grooming habits.