What causes congestion of the skin in the left external auditory canal, and what should be done about it?

Redness of the skin in the left external auditory canal may be related to improper ear cleaning, external otitis, or furuncles in the ear canal. Treatment can be achieved through daily care, medication, or physical methods. A detailed analysis is as follows:

1. Improper Ear Cleaning

Improper ear cleaning may damage and irritate the skin of the external auditory canal, causing local blood vessel dilation and increased capillary permeability, leading to skin redness. This condition typically requires no special treatment and usually resolves on its own after stopping ear cleaning.

2. External Otitis

External otitis refers to inflammatory infection affecting the skin and subcutaneous tissues of the external auditory canal, which may cause inflammatory responses such as local skin swelling, redness, and flaking. Patients may use medications such as ofloxacin otic solution or ciprofloxacin hydrochloride otic solution as directed by a physician.

3. Furuncle of the External Auditory Canal

A furuncle in the external auditory canal is an inflammatory condition caused by infection of hair follicles or sebaceous glands. The inflammatory response leads to local vasodilation, resulting in skin redness. In early stages, treatment may include physical methods such as local heat application or microwave therapy.

In addition to the common causes mentioned above, redness may also be associated with allergies or ear canal eczema. If accompanied by other discomfort symptoms, individuals should promptly seek medical attention at a hospital.