SARISUN Travel Pillows for Airplanes, 360° Stable Support Airplane Pillow with 3D Eye Mask, Headrest Pillow for Long Flight Road Trip Sleep, Stop Bobblehead Travel Essential, Black

I bought a head pillow that keeps your head in place and covers your eyes. It was bulky so I left it at my destination but it worked really well. I was flying PS so I had more room but still sitting upright

Airplanes have low humidity and staying moisturized and hydrated helps. You can bring an insulated bottle, walk up to the end of the aisle where the food is kept, and ask the attendants to fill it up with hot water for you. Bring some herbal tea bags, and you can open it up to sip it and breathe it in. Mint tea is a good option if your nose gets stuffy in flights. You can even bring a small hand towel, wet it with some tea, and wipe your face and hands with it. Aside from that, you can wear a mask to increase the humidity you breath in, and use the usual lip balm and moisturizing creams. Wear long sleeved clothing and bring a scarf or hoodie with a big hood to shield your face from the blasting AC that can trigger allodynia. Wear laced shoes that can be untied so that your feet have room to swell, and wear compression socks if those help. Bring a small electric hand warmer. They're under $10 and really nice to have for the cold. Bring squeezable apple sauce packs that are usually meant for kids. It's a high moisture snack and easy to eat. When traveling, I always being the klymit inflatable seat cushion ($13) for dealing with uncomfortable hard seats or shitty airplane seats or if I need to sit on the ground during a hike. It weighs nothing and it's easy to use. You can also get a head strap to strap your head into the seat it holds up your entire body so you can fall asleep.