---
title: "Swollen eyelid | Eye Health Guide"
description: "Common causes of a swollen eyelid, from styes and chalazia to allergy, and the warning signs of infection that need urgent care. Clinically reviewed."
url: https://eyehealthguide.org/symptoms/swollen-eyelid/
source: Eye Health Guide
licence: "General information only. Cite the URL and the named medical reviewer."
---

Symptom

# Swollen eyelid

Spreading redness needs urgent care

Medical reviewer [Mr Mohamed Mohyudin](https://eyehealthguide.org/reviewers/mohamed-mohyudin/)· Last recorded site review July 6, 2026

### About this review

This page inherits the site’s previous review record. A separate, current article sign-off has not yet been recorded.

[How review works](https://eyehealthguide.org/reviewers/) · [Official biography & credentials](https://mohamedmohyudin.co.uk/author/mohamed-mohyudin/)

Quick answer

A swollen eyelid is usually caused by a stye, a chalazion, or an allergic reaction, and most settle with simple care. However, a hot, spreading redness around the eye with fever, eye pain or changes in vision needs urgent care, as it can signal a deeper infection.

## When to get urgent help

- Spreading redness and swelling around the eye, especially with fever
- Eye pain, blurred or double vision, or difficulty moving the eye
- Swelling so severe you cannot open the eye
- Swelling after an insect sting or a sudden allergic reaction with breathing problems

### On this page ⌄

1. When to get urgent help
2. Common causes
3. What can help
4. Frequently asked questions

## Common causes

Most swollen eyelids come from a blocked gland, a local infection, or an allergy.

## What can help

- Apply a warm compress for styes and chalazia to help them drain
- Use a cool compress and avoid rubbing for allergic swelling
- Avoid eye make-up and contact lenses until the swelling settles

## Frequently asked questions

### Why is my eyelid swollen?

The most common causes are a stye, a chalazion, blepharitis, or an allergy. Most settle with warm or cool compresses, but spreading redness with fever needs urgent care.

### When is a swollen eyelid an emergency?

Seek urgent care if redness and swelling spread around the eye, especially with fever, eye pain, double vision, or difficulty moving the eye, as this can signal a deeper infection.

### How do I reduce eyelid swelling?

Use a warm compress for a stye or chalazion and a cool compress for allergy. Avoid rubbing, eye make-up, and contact lenses until the swelling settles.

Your next step

## Take this to your appointment

Write down what has changed, when it started, your current medicines and the questions you want answered. Take these to your eye-care appointment.

Sudden loss of sight, severe eye pain or a dark curtain across vision needs immediate assessment. Do not wait to complete a worksheet.

## Trusted sources

For general background, these organisations provide eye-health information. This list is further reading, not a record that they reviewed this article.

- [NHS — Health A to Z](https://www.nhs.uk/conditions/)
- [Moorfields Eye Hospital NHS Foundation Trust](https://www.moorfields.nhs.uk/)
- [American Academy of Ophthalmology — EyeHealth](https://www.aao.org/eye-health)
- [National Eye Institute (NIH)](https://www.nei.nih.gov/)
- [College of Optometrists — Look After Your Eyes](https://lookafteryoureyes.org/)
- [World Health Organization — Eye care, vision impairment and blindness](https://www.who.int/health-topics/blindness-and-vision-loss)