Itchy skin can be a sign of hundreds of conditions, each with different causes and treatments. In many cases, scratching these itches aggravates the situation further and may cause complications.
Causes
Causes of skin itches are divided into five groups: skin rashes, pregnancy, allergic conditions, internal diseases and drug reactions. Scabies, lice, chickenpox, fungal infections and dermatitis are examples of skin conditions that cause itching. Internal diseases such as liver diseases, kidney diseases and thyroid problems are possible causes of excruciating skin itches. Allergic reactions to products such as wool, chemicals and soaps can cause tormenting itches.
Diagnosis
Diagnosing the cause of the itch by a physician is done by examining the rash, questioning the patient, laboratory analysis and using medical imaging equipment such as ultrasound and MRI. Ultrasound and MRI are used in the case of internal diseases. Laboratory analysis is done in the case of internal diseases, skin rashes and pregnancy. Blood, skin samples and urine can be taken to ascertain the cause of the itch.
Treatments
Treatment of itches is usually successful, but not all conditions respond immediately. Many topical anesthetics are available to temporarily soothe the itch until the underlying cause of the problems is treated.
Results
Treatment of itches is usually successful, but not all conditions respond immediately. Many topical anesthetics are available to temporarily soothe the itch until the underlying cause of the problems is treated.
Complications
Complications can occur if an itch isn't addressed in a timely manner. Incessant scratching of the skin can lead to a condition known as neurodermatitis, in which patches of skin become thick and leathery. Itching can also lead to the development of bacterial infection, change in skin pigmentation and unsightly scarring.
References
- MayoClinic.com: Health: Itchy Skin
- "Dermatology and Venerology"; S.T.Pavlolv, O.K.Shaposhnikov, V.I.Samcov, I.I.Ilyin and K.R. Babayan; 2002
- "Harrison's Principles of Internal Medicine 16th Edition"; Lawrence Madoff, James Macguire, et. al.; 2005
