Facial Swelling - no diagnosis

I just came across this forum and thread. I developed swelling on the left side of my face about 6 months ago. For the most part if feels as if the swelling is localized to a spot on my jaw near by chin. It's almost as if there is some sort of lump or cyst in that area that fluctuates in size throughout the day. I had an ultrasound and CT earlier this year. Both showed nothing with the exception of soft tissue swelling in that area. About a month ago my eyelids started to swell as well. I thought it was allergies because my eyes burn and water if I'm outside for more than 10 minutes at a time, so I went back to my ENT. He ordered a full panel allergy test which didn't show anything except for a borderline allergy to dust mites. Would appreciate any advice on where to go from here because I'm at a loss. I don't have any pain associated with my swelling but it's very uncomfortable.

Welcome @wanderlust827, I know you must be terribly frustrated after having the different tests and seeing an ENT but still not having any answers or treatment. You probably have already seen this article but I thought I would share it just in case it might provide some possible ideas of what may be causing the swelling.

-- Lump Under Chin: Causes, Treatment, and More - Healthline
https://www.healthline.com/health/lump-under-chin
Have you thought about seeking a second opinion at a teaching hospital or a major health facility like Mayo Clinic?

I just came across this forum and thread. I developed swelling on the left side of my face about 6 months ago. For the most part if feels as if the swelling is localized to a spot on my jaw near by chin. It's almost as if there is some sort of lump or cyst in that area that fluctuates in size throughout the day. I had an ultrasound and CT earlier this year. Both showed nothing with the exception of soft tissue swelling in that area. About a month ago my eyelids started to swell as well. I thought it was allergies because my eyes burn and water if I'm outside for more than 10 minutes at a time, so I went back to my ENT. He ordered a full panel allergy test which didn't show anything except for a borderline allergy to dust mites. Would appreciate any advice on where to go from here because I'm at a loss. I don't have any pain associated with my swelling but it's very uncomfortable.

I recently found a post while doing research that resembles exactly what I’ve gone through this past year. I thought I should share my story as well in hopes for an answer or some guidance. Since September 2020 my face has been swelling every single day lasting the whole day. It gets worse as I sleep but fades a little as the day goes by. It started out as something small but gradually got more severe until it seemed to cap at a certain point. Originally my doctor thought it may have something to do with allergies. I’ve had 2 cats since late 2018 and have never had more than a stuffy nose or small hives which was never enough to bother me. He recommended we try using allergy pillow cases and making sure my room was clean and tidy while also keeping the cats out of my room. Nothing changed and we went back again for him to recommend an x-ray and to book an appointment with an allergy specialist. The x-ray showed nothing and I went to the allergy specialist months later. He did an allergy test and prescribed me prednisone for only four days. I was allergic to cats, horses, and grass with cats being the most feint of the three. On the fourth day of prednisone I clearly noticed a difference and so did my family. He started prescribing me many different allergy medications which I was on for a couple weeks to a month straight with no success from any of them. I started to think it may have something to do with asthma considering I've always been short of breath after exercising for a small period of time. I went back to the specialist to talk about that and he gave me an inhaler and prescribed asthma related medication which never worked either. I haven't gone back and so i started doing research again. Hypothyroidism is something that runs in my bloodline and has symptoms of swelling so I decided to get a blood test which came back perfectly fine. After that I got a CAT scan which also showed nothing besides the swelling itself. Its been a couple months since any of that and my next speculation has to do with masks. The first time I ever started wearing masks consistently was the start of school in September of 2020 which happens to be when it all started. I started wearing a black cloth mask I got from my gym class since it was the most comfortable to me. Like I said previously my swelling wasn't as bad for the first few months compared to now. Around winter I forgot my mask and was forced to use the normal surgical masks provided by the school. I really liked how it fit and I knew it was a lot more safe compared to fabric masks from what I’ve heard. My swelling started to get worse but I never once thought it might have to do with my mask. I started wearing them everyday until now where Im going to switch back to a cotton mask in hopes things will simmer down. The only other thing I could possibly think of as a cause for the swelling is a terrible sunburn I got in mexico around April 2020. I ended up blistering all over my face but I took good care of my skin and quickly recovered. I’m 17 years old, I’m skinny, I’m not on any medications, Ive never really had a serious medical condition, and I’m really lost. I just want an answer but Im not very hopeful after being let down so many times prior to now. If anyone has any information I might be able to find helpful I would really appreciate it. Thank you

I think I may cancel my CT scan now. Didn't seem to work for any of you in getting to the bottom of this. I am wondering if it is caused by stress. I still have the swelling also.