Itchiness

Itchiness is a sensation that causes the desire or reflex to scratch. Itch has many similarities to pain, and while both are unpleasant sensory experiences, their behavioral response patterns are different. Pain creates a withdrawal reflex, whereas itch leads to a scratch reflex.

Causes

Itchiness can be caused by a variety of factors, including skin conditions such as eczema and psoriasis, allergic reactions, insect bites, parasites such as scabies, fungi, and certain diseases such as liver disease or kidney disease. It can also be a symptom of certain nervous system disorders.

Diagnosis

Diagnosis of the cause of itchiness can be complex, as it can be a symptom of many different conditions. A medical history and physical examination are typically the first steps in diagnosing the cause of itchiness. Further testing may be required, such as blood tests, skin tests, or imaging tests.

Treatment

Treatment for itchiness depends on the underlying cause. It may include topical creams or ointments, antihistamines, corticosteroids, or other medications. In some cases, treating the underlying condition can help to alleviate the itchiness.

See also

• Pruritus
• Dermatology
• Skin disease

References

Itchiness Resources
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