Clinical Portal 2026 Dr. Murali Gopal
Parent guide

Diphtheria

A vaccine-preventable throat infection that needs urgent medical care.

Parent Guide Reviewed

Dr. Murali Gopal

Senior Paediatrician & Paediatric Pulmonologist
MCR: 57489
MBBS, DCH(UK), MRCPCH(UK), FRCPCH(UK), CCT Paediatrics (UK), Fellow in Paediatric Pulmonology (Aus), Allergology (Ind)

Parent education only. Most children do well when problems are recognised early and care is sought at the right time. This guide explains what parents can observe safely at home and when to seek medical help.

What is diphtheria?

Diphtheria is a serious bacterial infection that can affect the throat, nose or skin. Some strains produce a toxin that may damage the heart and nerves. A child with suspected diphtheria needs urgent hospital-based assessment and public-health advice.

Common symptoms and signs

  • Sore throat, fever and feeling very unwell.
  • Thick grey or white coating in the throat or tonsils.
  • Swollen neck glands or a bull-neck appearance.
  • Hoarse voice, noisy breathing, difficulty swallowing or drooling.
  • Skin sores in some children.

How it spreads or happens

  • Spread mainly by droplets from coughing or sneezing, or close contact with infected secretions.
  • Higher risk when vaccination is incomplete or community outbreaks occur.
  • The toxin, not just the throat infection, causes many dangerous complications.

Home care while arranging appropriate review

Focus on observation, fluids, comfort and timely review. Avoid self-starting antibiotics, leftover medicines, or unverified treatment plans.
  • Do not try to scrape or remove any throat membrane.
  • Keep the child away from school and close contact while arranging urgent medical review.
  • Take vaccination records to the doctor.
  • Household contacts may need medical or public-health advice.

Red flags / when to seek urgent medical care

Seek urgent medical assessment if your child has any of the following:
  • Any breathing difficulty, noisy breathing, drooling or bluish colour.
  • Grey-white throat membrane, especially in an unimmunised or partially immunised child.
  • Severe neck swelling, extreme weakness, fainting, palpitations or chest discomfort.
  • Any child suspected to have diphtheria should be assessed urgently.

Important facts for parents

  • Diphtheria is not just tonsillitis. Delay can be dangerous.
  • Vaccination greatly reduces risk, but a sick child still needs examination.
  • Treatment decisions, isolation and contact management must be supervised by doctors and public-health teams.

Medical disclaimer

General education only This guide provides general educational information for parents and caregivers. It does not replace medical consultation, diagnosis, examination, or individualized treatment by a qualified healthcare professional. If a child is unwell, worsening, or if there is any concern, seek medical advice promptly. Medicines, vaccines, tests and follow-up plans should be decided by a qualified clinician after examining the child.

References

  1. Indian Academy of Pediatrics. Standard Treatment Guidelines. https://iapindia.org/standard-treatment-guidelines/
  2. World Health Organization disease fact sheets and public-health guidance. https://www.who.int/

Last reviewed: 16 June 2026.

© Dr. Murali Gopal | For Patient Education Only This educational material is intended for parent and patient education. Reproduction, redistribution, or modification without permission is not allowed.

Medical review

Reviewed byDr. Murali Gopal

Last reviewed16 June 2026

Medical review statusClinician reviewed

ReferencesIndian Academy of Pediatrics. Standard Treatment Guidelines. https://iapindia.org/standard-treatment-guidelines/; World Health Organization disease fact sheets and public-health guidance. https://www.who.int/

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This parent guide is for general education only and does not replace consultation with your child’s paediatrician. Please seek medical care urgently if your child appears seriously unwell, has breathing difficulty, poor feeding, dehydration, altered responsiveness, or if you are worried.