Mystery eyelid swelling, only in the right eye.

I am a 17 year old female. When I was 16 I started to get these repeated cases of a swollen and puffy right eyelid. At first they treated it as conjunctivitis but it took 3 weeks to fully heal. It occurs about once every 3 months and there are no triggers that we know of. It lasts around 1-2 weeks depending on the treatment, they've tried antibiotics, antihistemines and steroids. The problem is, nothing has stopped it coming back. I had allergy testing done and they came back high (which we knew anyway), and I'm already on daily fexofenodine for these. If it was just the puffy eye I could deal with it, even when it gets to the point where I cannot physically pull the lids apart, I just hate how unwell it makes me feel. I get sinus pain for atound a week prior to the episode, so I can generally tell when it will happen. Then when it does I get headaches, feel like theres pressure building up behind my eynd I get a temperature whilst it also making es me really tired. It has also made my eyes very sensetive to light. I have recently been to see a dermatologist with a speciality in eyelids as all the doctors/opthamologists I have seen are baffled by me! She thinks it is probably caused by allergies but we don't get why it is only the right eye, and neither does she. I have been booked in for an MRI scan to check that nothing has been missed, and its not cellulitis or a thyroid problem. I posted on here to see if anyone has any advice or similar stories? I'm in the middle of my A levels and have already taken too much time off because of it! I just realky want it to go away and never come back!

Any help is welcome!

Hi Erin,

have you googled ethmoid sinusitis as this produces many of the symptoms you describe and can affect one eye.  Hope this helps.

This is just an idea but have a think about it.  Do you wear mascara?  I know you said that it's only the one eye that swells up but maybe if you are right handed you pile it on a bit thicker than the left eye and while a little bit is OK a little bit more isn't.  As it keeps coming back does it coincide with buying new mascara?  Perhaps you keep getting an infection in your lash line.  These are just a few random thoughts, I don't have any experience of puffy eyes, well I do but the puffiness consists of bags UNDER the eyes!!

No I don't really, if I do its only for the rare party because of my allergies. Plus its hypoallergenic! To be honest when it has happened I haven't been wearing make up for a while!