What should you know about septal cellulitis?

Septal cellulitis can cause one eyelid to become red, warm, swollen, and tender. It may follow a nearby skin injury, insect bite, sinus problem, or another infection. The location matters because infection near the eye can resemble, or potentially progress toward, a deeper orbital infection.

Pain when moving the eye, reduced vision, double vision, a bulging eye, or difficulty moving the eye are especially concerning for deeper involvement rather than a simple eyelid infection. A general cellulitis explanation can provide context, but facial and eye symptoms need direct clinical evaluation.

Arrange same-day medical assessment if you suspect septal cellulitis. Do not squeeze the swelling or apply unprescribed steroid or antibiotic creams near the eye. Bring a list of medicines and allergies, and mention recent bites, wounds, sinus symptoms, fever, or repeated infections.

Treatment may involve prescribed antibiotics and follow-up to check that swelling, redness, and tenderness are receding. Take treatment exactly as directed. If symptoms worsen or eye function changes, return urgently rather than waiting for a routine appointment.

Go to emergency care for vision change, double vision, eye movement pain, a bulging eye, severe headache, vomiting, confusion, marked drowsiness, or rapidly increasing swelling. Fever or a child who appears very unwell also warrants urgent attention. Skin redness, skin swelling, and painful skin can accompany cellulitis, but eye-related changes are the key escalation signs.

Ask whether the infection is limited to tissues in front of the septum, which treatment is needed, how soon improvement should begin, and which eye symptoms require emergency review. Ask whether sinus disease, an injury, diabetes, or another condition could have contributed.