Heat rash, or miliaria, is one of the most common types of rash. Heat rash is a skin condition that often affects children and adults in hot, humid weather conditions. You can develop it when your. Heat rash or prickly heat, is caused when the sweat glands on the skin are blocked, and then they cannot produce enough sweat to cool the skin. Symptoms of heat rash are red bumps on the skin and a itchy or prickly feeling on the skin. Heat rash treatments include OTC creams and sprays. If the sweat glands become infected, antibiotics may be necessary. What Are the Treatments for Heat Rash? In most cases, heat rash will clear up on its own in a few days if the affected area is kept cool and dry. So cool your body in an air-conditioned room or. Heat rash, also called prickly heat or miliaria, is a common condition in which areas of the skin feel prickly or sting due to overheating. It can itch a lot, but it’s not dangerous. It looks. Heat rash — Learn more about the symptoms, causes and treatment of this heat-related problem of the skin that affects people of all ages. 11 Home Remedies for Heat Rash. Heat rash, or prickly heat, is an itchy rash that is defined by the red spots that it causes on the skin. People with heat rash will feel constantly itchy and a stinging sensation on the skin will be quite persistent. Heat rash is a skin irritation common in hot, humid southern weather. Also known as prickly heat or miliaria, heat rash develops when blocked pores trap perspiration under your skin. In its worst forms, heat rash interrupts the body's heat-regulating mechanism and cause discomfort, fever, and exhaustion. Heat rash (miliaria, prickly heat is caused by overexposure to a hot environment. Signs and symptoms of heat rash include itching, red bumps, or blisters, on the face, neck, back, stomach, buttocks, groin, or the fold under the breasts. Home remedies for heat rash include first aid, cool baths or showers, and avoiding skin-to-skin contact.