itchy ears
Introduction
Introduction Itching is the feeling that the sensory nerves of the external auditory canal are slightly stimulated. Itching is the main symptom of skin disease in the external auditory canal. The bursts can also persist, and can suddenly occur. The specific manifestations of itching are acupuncture, tingling, ant crawling, and itching is extremely uncomfortable. It is usually caused by a local condition, or it can be caused by a systemic disease or with a systemic disease. It can also be caused by bad habits of the ear.
Cause
Cause
Local ear lesion
1 infants and young children lactation eczema, often good to send a thousand bilateral auricular auricular, posterior ear and external auditory canal, acute itching, local erosion and exudation, erythema, papules, blisters, exudate, scarring, scales, cracks, etc. It can gradually spread to the cheeks and scalp. Children often have itching, irritability, and even affecting diet and sleep. They are often associated with allergic constitution and artificial feeding.
2 seborrheic dermatitis, chronic external ear eczema and diffuse otitis externa can cause itching.
3 otitis media long-term pus, irritating the skin, causing dermatitis, eczema-like dermatitis, scarring caused by itching.
4 external ear canal fungal diseases, such as parasitic diseases, candidiasis and mucormycosis, etc., are particularly prone to occur in warm, humid environments, fungal growth, irritating the surface of the skin, can be invaded deep, causing diffuse inflammation. The ear is hot and itchy, and the exudation can block the external auditory canal, affecting the hearing. When dry, there is a layer of powder on the surface of the cognac, and fungi are seen under the microscope.
5 psoriasis, senile pruritus, dry skin in the ear, desquamation, itching.
6 drug allergy or drug contact dermatitis, a history of ear drops, edema oozing more, improved after stopping the drug.
7 foreign bodies in the ear, such as small insects crawling, or other foreign bodies such as sputum, can cause itching.
8 ear skin moss, which occurs simultaneously with skin moss.
9 insects stabbed or bitten, can cause itching.
10 auricle frostbite, which occurs in cold exposure, initially numbness, followed by redness and burning and itching.
2. Systemic diseases
Such as diabetic patients, dry skin, causing itching; biliary obstruction, increased biliary salt in the body caused by itching; uremia, hemodialysis, etc. can cause systemic itching, also occurs in the ear.
3. There is also a situation where the ear does not have an itchy disease, but it develops the habit of rubbing the ear; when it is idle, it wants to use a matchstick, a hairpin, etc., and it feels itchy.
Examine
an examination
1. Ear examination: The doctor checks the appearance of the ear through a professional inspection tool. Ear examinations mainly include otoscopy, eustachian tube function tests, hearing tests, vestibular function tests, fistula tests, and other tests. Generally, the size, position, presence or absence of deformity and bilateral symmetry of the auricle are observed first, and the auricle and mastoid and the lymph nodes around the ear are swollen, tender and tender.
2. Ear, nose, throat swab bacterial culture, Otolaryngology CT examination.
Diagnosis
Differential diagnosis
1, chronic otitis externa: chronic external auditory canal only discomfort or itching, ear canal skin congestion or thickening, covered with purulent but no mold growth, for bacterial culture or microscopic examination can be distinguished.
2, external auditory canal inflammation is acute or chronic inflammation of the external auditory canal skin, fungal infection is called external ear canal fungal disease. Patients with otitis externa have a feeling of itching and burning in the ear, and feel pain in the ear in the temporomandibular joint movement. At first the secretion is a thin serous secretion, which gradually becomes thicker. Fungal presbyopia has blue smoke, black or yellow white mold, visible hyphae, and the skin is in contact with the skin.
