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How to manage decayed tooth symptoms in an 8-year-old?

This Premium Q&A, reviewed and published, features a real conversation between an iCliniq user and a physician.

Patient's Query

Hello doctor,

What medicine should I give to my granddaughter who has a swollen gum due to a decayed tooth? She has a fever right now, and I just administered Tylenol for the fever. She is an 8‑year‑old girl.

Kindly help.

Thank you.

Hello,

Welcome to icliniq.com.

I read your query and understood your concern.

From your description, your granddaughter (8 years old) has a swollen gum and a fever. You have already given Tempra (Paracetamol). Based on these symptoms as described, the most likely cause is a dental infection related to a decayed tooth, which may have progressed to an acute dental abscess.

From the image (attachments removed to protect the patient’s identity), the swelling near your granddaughter’s lower tooth could be due to several possible causes:

It may be a normal eruption swelling (if a permanent tooth is trying to come in).

  1. A mild gum infection (gingivitis) from food lodging or poor cleaning.

  2. A retained baby tooth with an erupting permanent tooth behind it.

  3. Early signs of dental decay under the gumline.

Since it is difficult to confirm the exact cause without a full oral examination or X‑ray, here is what you can do for now:

Measures to follow:

  1. Continue Paracetamol (Tempra) for any fever or discomfort.

  2. Apply a cold compress outside the cheek for 10 to 15 minutes, two to three times per day.

  3. Provide soft and lukewarm food.

  4. Gently brush the area and rinse with warm salt water (if the child can swish safely).

Check for these symptoms:

  1. Swelling worsens or pus appears.

  2. Fever continues beyond 48 hours.

  3. The tooth becomes loose or painful to bite.

  4. Foul odor or taste is noticed.

A dental visit is essential, so please consult a pediatric dentist soon for an intraoral examination. Even if the fever reduces, the underlying tooth needs dental evaluation to determine the root cause.

You may share another photograph after two to three days or sooner if symptoms worsen. There is no need to panic, but do not delay dental care. Do not apply antibiotics or any other medication without an in‑person visit to a pediatric dentist.

I hope this helps.

Kindly follow up if you have more doubts.

Thank you.

Differential diagnosis

Gingivitis or food impaction.

Pulpitis in a deep carious tooth.

Periapical infection.

Probable diagnosis

Acute dentoalveolar abscess associated with a carious primary molar or incisor.

Treatment plan

Immediate management, restorative treatments(pulpotomy or pulpectomy). If necessary, with antibiotics if there is infection/extraction if severe, pus if present, incision and drainage.

Preventive measures

Preventive measures as mentioned above.

Medically reviewed byiCliniq medical review team

Published At September 20, 2025
Reviewed AtSeptember 23, 2025

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