Q:

What causes itchy body welts?

A:

Itchy body welts, also referred to as hives, appear in response to histamine, a chemical that is released by mast cells, which are its major source, according to Dermatopedia from the Dermatological Society of New Jersey. When the cells release the chemical, itching and welts are experienced almost immediately.

Keep Learning

As explained in Dermatopedia, itching and welts generally disappear within 30 minutes once the body metabolizes histamine into an inactive substance. The release of histamine takes place within the first 20 minutes of the ingestion of an allergen. Allergens may be contained in either food or medicine. The avoidance of the allergen prevents hives from reappearing. If a severe reaction is experienced, anaphylaxis may result. Besides hives, sneezing, shock and wheezing are common side effects. Death may occur in some instances of an extreme allergic reaction.

Learn More
Sources:

Related Questions

  • Q:

    What causes itchy hands and feet?

    A:

    Itchy hands and feet may be caused by psoriasis, dry skin, scabies, eczema, allergies or diabetes, according to WebMD. Doctors can assess a patient's symptoms to make a diagnosis and determine an effective treatment plan, such as topical ointments, prescription medications, creams, antihistamines, corticosteroids or lotions.

    Full Answer >
    Filed Under:
  • Q:

    What causes cholesterol?

    A:

    Cholesterol is both produced by the body and taken in with food. A sterol (modified steroid) and a lipid, cholesterol is essential for maintaining healthy cell membranes in animals and synthesizing bile acids and vitamin D. Usually the body, especially the liver, produces all the cholesterol the body needs.

    Full Answer >
    Filed Under:
  • Q:

    What causes sweat to smell sour?

    A:

    Sweat smells sour due to bacteria that is present in the body. When a person gets hot, the sweat glands open and two substances are released, according to the Mayo Clinic. These substances mix with the bacteria naturally present on the body and may produce a sour odor.

    Full Answer >
    Filed Under:
  • Q:

    What causes a person to shake?

    A:

    Involuntary shaking is usually caused by some form of nerve damage that corrupts the communication between the brain and muscle cells in the body, explains MedicineNet. Associated health conditions include multiple sclerosis, amphetamine use, mercury poisoning, stroke, psychiatric prescription medications, alcoholism, brain injury, corticosteroid use, drug withdrawals and liver failure.

    Full Answer >
    Filed Under:

Explore