Boil of the external auditory canal

Introduction to external ear canal edema External ear canal edema is an acute localized purulent lesion of the external auditory canal skin, also known as localized otitis externa. Occurred in the cartilage of the external auditory canal, is one of the common diseases in the ear, and occurs frequently in summer. The causes are mostly ear damage to the external auditory canal skin or water in the ear canal after bathing and swimming, so that the local epidermis softens and is easily invaded by bacteria. In addition, the impregnation of purulent otitis media pus, as well as certain systemic diseases such as diabetes can also induce external auditory canal swelling. Early external canal edema can be used for hot compress or physiotherapy. Irritation can be used at the beginning of bloating, and can also be treated with 1% phenolic glycerin. After swelling and maturation, it can be treated with self-destruction or incision. Change the dressing once a day, first clean the purulent secretion with 30% diammonium water, remove the purulent sputum, and then use appropriate antibiotics or boric acid ointment. If the pain and fever are heavier, antibiotics can be used to control the infection and use painkillers. basic knowledge The proportion of illness: 0.001% Susceptible people: no special people Mode of infection: non-infectious Complications: hearing impairment

Causes of external ear canal edema

Bacterial infection (66%):

Because the hair follicles and sebaceous glands on the skin are easily infected by staphylococcus, it is more common in summer and autumn, mostly for ear damage to the external auditory canal skin or water in the outer ear canal after bathing and swimming, so that the local epidermis softens and is easily infected by bacteria; Long-term pus and other damage to the ear or the skin of the external auditory canal, causing the disease to occur.

Systemic disease (34%):

Some chronic diseases such as diabetes, long-term constipation, endocrine disorders, anemia and other diseases can cause the body's resistance to be low, and it is easy to cause this disease.

External ear canal swelling prevention

Do not dig your ears casually. If there is water in your ear after swimming, you can turn your head sideways, make your ear face down, and jump a few times on one foot. Pour out the water in your ear to avoid inflammation. If earwax should be removed, And to avoid irritation such as moisture, can prevent the disease.

External auditory canal complication Complications, hearing impairment

Hearing can be reduced when the lumps are blocked by the external auditory canal.

Symptoms of external auditory canal edema Common symptoms External ear canal pain Intermittent ear pain Earache ear flow Pusemia Ear secretions Fever hearing bone deformity Episode deafness

1. The main symptom is beating earache. When the chewing mouth is chewed, the pain is aggravated. The painful athlete can radiate to the ipsilateral head, affecting the patient's sleep. Hearing can be affected by swelling of the external auditory canal.

2. Check that the wall of the external auditory canal is hemispherical, with local congestion and tenderness. When the patient's auricle is compressed or the tragus is pressed, the ear pain is intensified. After the abscess is mature, the hemispherical bulge may have a purulent yellow spot. The liquid flows out, and the pus is generally thick and sometimes mixed with blood.

External auditory canal edema

Check the presence or absence of single or multiple small hernias in the external auditory canal of the ear, which is characterized by localized redness and swelling. When the auricle is pulled or the tragus is pressed, the pain is obviously aggravated. The blood test can show leukocytosis. The wall of the external auditory canal was hemispherical, with local congestion and tenderness. The ear pain was aggravated when the patient's auricle or the tragus was pulled. After the abscess matured, the top of the hemispherical bulge may have a purulent yellow spot. The pus is generally thicker and sometimes mixed with blood. When the patient is sick, the patient feels general malaise and the body temperature may increase slightly.

Diagnosis and diagnosis of external auditory canal edema

1. History: Pay attention to whether there are ear, trauma, ear leaks, etc.

2. Physical examination:

(1) Pay attention to the pain of auricular traction, otoscope tenderness or chewing.

(2) Note that single-shot depression is complicated by multiple edema, with or without pus, and whether it has collapsed.

(3) pay attention to the parotid gland and mastoid, swollen in the anterior wall of the external auditory canal, can occur before the ear swelling, and may involve the parotid gland; the posterior wall edema can cause swelling of the back of the ear, mastoid. Must be differentiated from mumps and mastoiditis. The tympanic membrane and hearing should be checked as much as possible.

3. Identification: Different from ear pain in acute otitis media, acute otitis media without auricle traction pain.

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