May 6, 2022 · Heat rash — also known as prickly heat and miliaria — isn't just for babies. It affects adults, too, especially in hot, humid conditions. Heat rash occurs when sweat is trapped in the skin. Symptoms can range from small blisters to deep, inflamed lumps. Some forms of heat rash are very itchy.

May 6, 2022 · Before you go, it's a good idea to list questions you have about your condition. For heat rash, questions to ask your health care provider include: What could have caused this rash? How can I treat it? Do I need to limit physical activity until the rash clears? How can I prevent it …

Oct 1, 2024 · Chronic hives are welts that last for more than six weeks and return often over months or years. Often, the cause of chronic hives isn't clear. The welts often start as itchy patches that turn into swollen welts that vary in size.

Mar 24, 2017 · Chronic hives signs and symptoms include: Batches of red or white welts (wheals), usually on the face, trunk, arms or legs. Welts that vary in size, change shape, and appear and fade repeatedly as the reaction runs its course.

Feb 16, 2016 · Evidence suggests that certain factors — such as heat, tight clothing and nonsteroidal anti-inflammatory drugs (NSAIDs) — can worsen chronic hives. Try to keep cool, avoid hot showers, and wear loose, comfortable clothing.

Dec 19, 2023 · Swollen rash. Irritant contact dermatitis develops when the skin comes into contact with certain things that cause a rash. Irritant contact dermatitis is different from allergic contact dermatitis but shares some features. Some people react to strong irritants after just one exposure.

Jul 11, 2024 · Prolonged exposure to both heat and humidity can lead to heat-related illnesses — from heat cramps to exhaustion to life-threatening heatstroke. Dr. Jesse Bracamonte, a Mayo Clinic family physician, offers recommendations on what to do if you begin to feel ill.

Jun 27, 2019 · Three years ago I had an onset of skin itch with no rash localized in thorax, arms, neck and back. Coincidentally this onset appeared after I was treated for a bout of pulmonary obstruction due to many years of past smoking.

May 2, 2024 · Contact dermatitis is an itchy rash caused by direct contact with a substance or an allergic reaction to it. The rash isn't contagious, but it can be very uncomfortable. Many substances can cause this reaction, such as cosmetics, fragrances, jewelry and plants.

Apr 6, 2023 · Heat exhaustion is a condition that happens when your body overheats. Symptoms may include heavy sweating and a rapid pulse. Heat exhaustion is one of three heat-related illnesses, with heat cramps being the mildest and heatstroke being the most serious.