Final point- helping to calm your central nervous system. Our vagus (control of major body functions) & other nerves can get badly affected. You may already have chosen ways to relax yourself- if so use them.
In case helps I have used meditation (Headspace app has free trail), calm -there are others. It takes a while to master so be patient with yourself.
Voo breathing - helps to calm vagus nerve- are demos online. Deep abdominal breathing but push rib cage out at sides too- it’s such a big muscle it helps move lymph. Alternate nostril nose breathing- one nostril might not work but just try gently to extent comfortable/able.
I use NuCalm app to calm CNS- was developed fir PTSD sufferers- I get it free as did original trial but can do month by month subscription I think. GABA in bio signal professing disc helps our brains.
Guess that’s enough from me. Hope some of ideas help. D