What causes ear itching?
Ear itching may have many possible causes, including allergens (agents that cause allergies), infections, autoimmune disorders, or other causes, such as stress.
Allergic causes of ear itching
Ear itching could be an allergic reaction to any of the following:
- Certain foods
- Cosmetics, dyes or detergents
- Industrial chemicals, such as those found in elastic, latex or rubber
- Metals such as those used in jewelry
- Poison ivy or oak
- Stings or bites
Infectious causes of ear itching
Ear itching can also be caused by infections including:
- Ear infection
- Strep throat (bacterial infection)
Skin disease causes of ear itching
Ear itching can also be caused by skin diseases that affect other parts of the body. These include:
- Eczema (skin rash usually caused by allergic reactions)
- Neurodermatitis (skin condition, the cause of which is not known, characterized by intense itching)
- Psoriasis (chronic skin disease characterized by dry, scaly silvery patches)
Other causes of ear itching
Ear itching can be caused by other factors including:
- Extreme cold or heat
Serious or life-threatening causes of ear itching
In some cases, ear itching may be a symptom of a serious or life-threatening condition that should be evaluated immediately in an emergency setting, such as anaphylaxis, a life-threatening allergic reaction.
Questions for diagnosing the cause of ear itching
To diagnose your condition, your doctor or licensed health care practitioner will ask you several questions related to your itching including:
- When did your ear itching start?
- Are you taking any medications?
- Do you have any known allergies?
- Do you feel otherwise healthy?
- Have you tried any new products recently, such as soaps, perfumes or sprays?
- Have you spent a lot of time outdoors lately?
- Have you gone swimming or scuba diving recently?
- Have you recently been in an airplane or done anything else that would have exposed you to sudden changes in altitude or air pressure?
- Does scratching make it better or worse?
What are the potential complications of ear itching?
Ear itching is not usually serious, but it is important to determine the underlying cause in order to rule out a serious infection or allergic reaction. Once the underlying cause of your itching is diagnosed, it is important for you to follow the treatment plan that you and your health care professional design specifically for you to reduce the risk of potential complications related to the persistence or spread of infection including:
- Cellulitis (infection of the skin and tissues)
- Chronic otitis externa (persistent outer ear infection)
- Necrotizing otitis externa (potentially life-threatening outer ear infection)
Ear problems. FamilyDoctor.org. http://familydoctor.org/online/famdocen/home/tools/symptom/507.html. Accessed April 28, 2011.
Itching. Medline Plus, a service of the National Library of Medicine National Institutes of Health. http://www.nlm.nih.gov/medlineplus/itching.html. Accessed April 28, 2011.
What is ear itching?
Ear itching is a tickling, irritating sensation accompanied by the persistent need to scratch your ear. Redness, swelling, soreness, flaking and scarring may occur in the area of itchiness. The medical term for itchiness is pruritus. Although scratching may temporarily relieve your symptoms, it can cause more irritation or lead to an infection. With most cases of itching, it is best to ref... Read more about ear itchingintroduction