Headache behind one eye: what to know

Headache behind one eye needs attention to severity, timing, eye symptoms, and other symptoms rather than location alone. Ask whether it began suddenly, follows a repeated pattern, or changes with movement, light, screens, congestion, or posture.

Migraine often causes one-sided head pain and may include nausea or sensitivity to light and sound. Cluster-type headache may centre around one eye and include tearing, eyelid drooping, or a blocked nostril on the same side. Sinus congestion from Allergic Rhinitis, Chronic Sinusitis, Common Cold, or COVID-19 can cause facial pressure, although pressure is not the only explanation. Dry eyes, prolonged focusing, vision changes, and tension in the jaw or neck can also contribute. The same symptom can have different causes in different people.

Pause close-up work and screens, rest somewhere quiet, and avoid bright light if it aggravates the pain. Sip water and have a light meal if you have not eaten. A cool cloth over the forehead may be soothing. Note the exact start time, side, intensity, eye appearance, nasal symptoms, nausea, and any trigger. If you take a non-prescription pain reliever, follow the label and check with a pharmacist if you are pregnant, have kidney or stomach problems, or take other medicines. Avoid repeatedly treating headaches without review.

Get urgent medical help for sudden severe pain, a red or swollen eye, sudden vision change or loss, severe eye pain with nausea, new weakness or confusion, trouble speaking, fainting, fever with a stiff neck, or pain after injury. Seek a routine appointment for a first or changing pattern, frequent episodes, pain that wakes you, or symptoms that persist despite your usual measures. The clinician may check vision, eye movement, the nervous system, blood pressure, and nearby sinus or jaw areas.

Ask whether the pattern fits migraine or a cluster-type headache, whether an eye examination is needed, and which warning signs matter for you. Ask how to use pain relief safely and whether your medicines, sleep, hydration, vision, or screen habits could be contributing.