Impacted Cerumen (Earwax Blockage): Clinical Management and Safe Removal Guide
- Mayta
- 1 hour ago
- 2 min read
Introduction
Impacted cerumen is one of the most common and easily treatable conditions encountered in outpatient practice. Despite its simplicity, improper management can lead to complications such as ear injury or infection. This guide provides a clear, guideline-based approach suitable for both clinical practice and medical education.
👂 What is Impacted Cerumen?
Cerumen (earwax) is a natural substance produced by glands in the ear canal. It serves to:
Protect the ear from dust and bacteria
Lubricate the ear canal
However, when it accumulates excessively, it can cause:
Hearing loss
Ear fullness
Tinnitus
Occasionally dizziness
⚠️ When Should You Treat?
According to AAO-HNS (American Academy of Otolaryngology) guidelines:
✅ Treat if:
Symptomatic (hearing loss, discomfort, blockage)
Obstructing ear examination (e.g., cannot see the tympanic membrane)
❌ Do NOT treat routinely if asymptomatic
🏥 Management Setting
Most cases are safely managed in the Outpatient Department (OPD).
💊 Step-by-Step Management
1. First-line: Cerumenolytic Ear Drops
The goal is to soften the wax before removal.
✅ Sodium Bicarbonate 5% (Common in Thailand)
Dose: 2–3 drops, 3×/day, topical ear, for 3–5 days
Mechanism: Alkalinizes and breaks down wax
✅ Glycerin Ear Drops
Dose: 2–3 drops, 3×/day, topical ear, for 3–5 days
Mechanism: Softens wax (emollient effect)
⚠️ Hydrogen Peroxide 3%
Dose: 2–3 drops, 2–3×/day, for 3–5 days
May dilute 1:1 with clean water to reduce irritation
Mechanism: Releases oxygen bubbles → helps dislodge wax
❗ Use with caution:
Can cause irritation or vertigo
Avoid if eardrum is perforated
🛑 How to Use Ear Drops Properly
Lie on your side (affected ear up)
Instill drops into the ear
Stay in position for 5–10 minutes
Do NOT rinse immediately
Let excess fluid drain naturally
👉 This step is crucial for effectiveness
2. Second-line: Mechanical Removal
If symptoms persist after 3–5 days:
Options:
Ear irrigation (warm saline or water)
Microsuction
Manual removal with curette
📌 Should be performed by trained healthcare providers
❌ What NOT to Do
Do NOT use cotton buds (Q-tips) → pushes wax deeper
Do NOT irrigate if:
Tympanic membrane perforation
Active infection
History of ear surgery
🚨 When to Refer
Refer to ENT specialist if:
Severe pain or bleeding
Recurrent impaction
Suspected perforation
Failed removal attempts
📚 Clinical Pearls (High-Yield for Exams)
First-line in Thailand → Sodium bicarbonate ear drops
Always check for contraindications before irrigation
Ear drops must be left in place for 5–10 minutes
Cotton buds = ❌ contraindicated
Summary
Step | Management |
First-line | Cerumenolytics (NaHCO₃, glycerin) |
Second-line | Irrigation / suction |
Avoid | Cotton buds, unsafe irrigation |
Refer | Complicated cases |