🌫️ Nebulization:

Doctors may give nebulizer treatment to:

• Reduce swelling in the nose and sinuses
• Help mucus come out easily
• Speed up recovery

🩺 Nasal Surgery:

In chronic (long-term) or recurring sinusitis, doctors may perform surgery to:

• Remove infected tissue and mucus
• Open the blocked sinus pathways

🔹 2. Otitis Media

🧠 Otitis media means inflammation of the middle ear.
It is more common in children, but can occur in adults too.

👂 Let’s Understand the Ear First:

The ear has three parts:

1. Outer ear – part we see
2. Middle ear – small space behind the eardrum
3. Inner ear – helps with hearing and balance

The middle ear is connected to the throat by a tube called the Eustachian tube. This tube helps equalize pressure and drain fluid.

🤒 What Happens in Otitis Media?

Sometimes, the Eustachian tube gets blocked, and fluid gets trapped in the middle ear.

• This fluid attracts germs (bacteria or viruses)
• These germs cause infection and inflammation

📅 Types of Otitis Media:

Type	Duration
Acute	Sudden and short-term
Chronic	Long-term (more than 6 weeks)

⚠️ Symptoms of Otitis Media

• Severe ear pain
• Pulling the ear (common in small children)
• Fever
• Fluid coming out of the ear
• Hearing problems
• Loss of balance or dizziness

🧠 Real-life Example:
Have you ever had pain in your ear while flying or swimming? It happens due to pressure changes or water entering the ear — similar pressure problems can cause otitis media.

💊 Treatment of Otitis Media:

• Painkillers (oral or eardrops) for pain relief
• Antibiotics if it’s caused by bacteria
• Keep the ear dry and avoid inserting anything inside

🧾 Summary of What We Learned:

Disorder	Affected Area	Main Cause	Symptoms	Treatment
Sinusitis	Sinuses around nose and eyes	Mostly viral	Facial pain, fever, blocked nose, mucus	Rest, painkillers, antibiotics if needed, nebulization, surgery in chronic cases
Otitis Media	Middle ear	Fluid buildup causing infection	Ear pain, fever, fluid discharge, hearing loss	Painkillers, antibiotics (if bacterial), keep ear dry

🫁 Lesson 10.4 (Continued) – Lower Respiratory Tract Infections and Lung Disorders

🔻 What Are Lower Respiratory Tract Infections?

We already studied that the upper respiratory tract includes parts like the nose, throat, and sinuses. But the lower respiratory tract includes more critical parts like:

• The trachea (windpipe)
• The bronchi
• And most importantly, the lungs, including the alveoli (tiny air sacs where gas exchange happens)

When infections happen in these lower parts, they are called Lower Respiratory Tract Infections. These can be mild, like bronchitis, or severe, like pneumonia and tuberculosis. Let’s study each in detail.