Swimming Pool Fever: Eye Infection, Throat Pain & High Fever in Children — What Parents Must Know

Summer swimming lessons, weekend pool visits, and club swimming are a staple of childhood in Hyderabad. But swimming pools — particularly crowded ones — are efficient transmission routes for several infections. Within 24–72 hours of a pool visit, children commonly develop one or more of three classic post-pool infections: eye infection (conjunctivitis), throat infection (pharyngitis), or a combination with fever. Understanding what causes each helps parents act appropriately.

Conjunctivitis After Swimming (Pool Pink Eye)

The most common post-pool complaint. Two distinct causes:

Chemical conjunctivitis (chlorine irritation): Chlorine and chloramines (formed when chlorine reacts with urine, sweat, and organic matter in the pool) irritate the cornea and conjunctiva. Both eyes become red, watery, and mildly painful immediately after swimming or within hours. There is no discharge and no fever. This is not an infection — it is chemical irritation. Treatment: rinse eyes thoroughly with clean water; lubricating eye drops; avoid rubbing. Resolves in 12–24 hours without treatment.

Infective conjunctivitis: Adenovirus — the most common infectious cause. Spreads readily in shared pool water. Onset 1–3 days after exposure. Presents with: red eye, watery discharge (can become mucopurulent), gritty feeling, light sensitivity, swollen eyelid. Often spreads from one eye to both. May be accompanied by upper respiratory infection and fever (pharyngoconjunctival fever — PCF — a specific adenovirus syndrome). Highly contagious person-to-person: strict hand hygiene essential. Most viral conjunctivitis resolves in 7–14 days without antibiotics. Antibiotic eye drops are not needed for viral conjunctivitis — they do not speed recovery.

Throat Pain After Swimming

Pharyngoconjunctival fever (PCF): a classic adenovirus triad — sore throat, conjunctivitis, and fever — transmitted via pool water. The throat is red with enlarged tonsils; cervical lymph nodes may be swollen. No specific treatment; supportive care with adequate fluids, paracetamol for fever, and rest. Contagious for up to 2 weeks — avoid pool and school until fever-free and eye discharge resolved.

Ear infections (swimmer's ear / otitis externa): water entering the ear canal softens the protective wax layer and allows Pseudomonas and Staphylococcus bacteria to invade. Presents with: ear pain on pulling the ear or pressing the tragus; discharge from the ear; reduced hearing. Treatment: antibiotic ear drops (ciprofloxacin). Prevent by: tilting head to drain water after swimming; using earplugs; avoiding cotton buds (remove protective wax).

When to See a Doctor After Pool Swimming

• Fever above 38.5°C for more than 48 hours
• Eye discharge that is thick, yellow-green, or not improving after 5 days
• Reduced vision or eye pain (not just irritation)
• Ear pain or discharge
• Difficulty swallowing

For post-swimming infections in children: Dr. Sushma B at Sri Anand CNC, Chanda Nagar, Hyderabad. Call +91 90633 66983.