That is so so sad. I was afraid there would be worse cases than the several mentioned, since HA is also natural. They are using a heart medication ( scary) that seems to immediately reverse the lip etc inflammation. And also there is something that dissolves the HA injected ( equally scary). I will see if I saved the notes on this. I know there's a you tube video too. So sad for your friend. There are several pictures ( lips) on line too. I know. It seems to me that the Moderna vaccine thinks something in my body is the enemy. My brother had the exact same back pain, but found he had a herniated disk. So he had sergery. Still lots of problems which is ow blamed on the sergery. DA! I'll note any references I've found for you. Think most can be found by " Hyaluronic Acid vaccine reactions". Good luck....
I'm not a doctor or scientist..... But seems the vaccine might be breaking hi weight HA ( something that calms inflammation) into smaller low weight HA ( something that causes inflammation)
Think Lisinopril is the medication that is helping.
I'm not techy ... So try " Oral angiotensin-converting enzyme inhibitors....... At National Library of Medicine.
4 cases with pictures.
Sorry. Keep trying! T