Itchiness is an uncomfortable and irritating sensation that provokes the urge to scratch. Severe body itching can be caused by irritants on the skin surface or infections of the skin. Although scratching may provide temporary relief, it can cause spread of rashes and increased risk of infections.
Contact Dermatitis
Contact dermatitis is inflammation of the skin that occurs as a result of direct contact with an irritating substance. The condition is characterized by the presence of a red, severely itchy rash that may be accompanied by pain, tenderness or blisters, according to MayoClinic.com. Common irritants that can cause contact dermatitis include household cleaning products, harsh soaps and cleansers, poison ivy, cosmetics and medicated lotions. Contact dermatitis usually clears up on its own by avoiding the product that triggered the rash. Over-the-counter medicated creams may be useful in relieving itching. Severe cases may require the use of oral antibiotics or anti-inflammatory medications to reduce inflammation and stop itching.
Cutaneous Candidiasis
Cutaneous candidiasis is a fungal infection of the skin caused by the candida fungus. The fungi that cause cutaneous candidiasis normally live on the skin but cause an infection when they multiply in warm, moist areas. The fungal infection most often affects the armpits and groin and occurs more frequently in those who are obese, according to MedlinePlus. Symptoms of cutaneous candidiasis include severe itching, skin rash, redness and inflammation. Topical anti-fungal creams can be used to treat the problem. Some people may require oral antifungal medications. Future outbreaks of cutaneous candidiasis can be prevented with proper hygiene and keeping the surface of the skin dry and clean.
Scabies
Scabies is a skin infection that develops as a result of infestation of the skin with small mites. The mites invade the top layer of skin where they lay eggs. The initial symptom of scabies is small, itchy red bumps that occur at the sites of infestation. As the infection progresses, itching becomes severe and the bumps may burst and release pus when scratched, according to KidsHealth from Nemours. The skin may also become thick and scaly. Scabies is a highly contagious skin infection and can be easily spread in crowded areas, such as classrooms. Transmission also frequently occurs through sexual contact. Treatment for scabies consists of the application of a medicated cream or lotion that kills the mites. Itching may cease within one or two days, but it is important to continue treatment until rashes or red spots disappear.


