Diseases and Conditions

Why Wrapping HelpsAn ankle wrap works through two mechanisms.The first is mechanical compression. When a ligament tears, the inflammatory response floods the surrounding [...]

Why Skin Can Itch Without a RashMost people associate itching with something they can see: a bug bite, a rash, hives, or dry flaking skin. But itching can occur with [...]

Why Some Muscles Heal Faster Than OthersThree factors largely determine how quickly a strained muscle returns to full function.Blood supply is first. Muscles with rich [...]

What Is Hydroquinone?Hydroquinone is a topical depigmenting agent that has been used in dermatology for more than 50 years. It works by inhibiting tyrosinase, the enzyme [...]

What Sun Spots Actually AreSun spots go by several names: solar lentigines, liver spots, and age spots. Whatever you call them, the underlying cause is the same: years of [...]

Understanding the Types of Acne ScarsNot all acne scars look the same, and that matters a great deal when choosing treatment. The two broad categories are atrophic [...]

The Truth About "Overnight" HealingLigaments do not heal overnight. They have a limited blood supply compared to muscle tissue, and even a mild grade 1 sprain [...]

Why Itching Sometimes MovesWhen a bug bites your arm, the itch stays on your arm. But some types of itching seem to travel, appearing on your back one hour and your legs the [...]

Understanding Doxycycline and Lyme Disease TreatmentFinding a tick attached to your skin triggers immediate worry. Should you take antibiotics? How long do you have to act? [...]

What Happens After a Tick BiteFinding a tick embedded in your skin creates immediate anxiety. Should you rush to a doctor for doxycycline after a tick bite, or is watchful [...]