A small lump has appeared on the edge inside the ear.

Generally, a small lump appearing on the inner edge of the ear may be caused by various factors. Common causes include earwax buildup, folliculitis, and ear canal inflammation. Appropriate treatment is usually determined based on the specific underlying cause. A detailed analysis is as follows:

1. Earwax

Earwax is a yellowish or brown substance naturally secreted by the ear. When excessive earwax accumulates inside the ear, it may form a small lump. Under medical guidance, earwax softeners such as sodium bicarbonate ear drops or phenol glycerin ear solution can be used to soften the wax, followed by gentle irrigation with warm water.

2. Folliculitis

Folliculitis is an inflammation of hair follicles caused by bacterial infection, which may result in small lumps inside the ear. Under a doctor's supervision, antibiotic medications such as minocycline tablets or doxycycline tablets may be prescribed for treatment.

3. Ear Canal Inflammation (Otitis Externa)

Ear canal inflammation is an infection of the ear canal caused by bacteria or fungi, which may lead to the formation of small lumps in the ear. Treatment may include antibiotics such as amoxicillin capsules or cefixime tablets, as directed by a physician.

In addition, an ear boil (furuncle) may also cause small lumps inside the ear. It is recommended to seek timely medical attention for accurate diagnosis and proper treatment by a qualified healthcare professional.