I have MCTD, an overlap disease. I end up chasing the symptoms rather than the diagnosis.

I use the Systane ointment at night and a eyemask at night helps a lot. I have a cpap machine and so the eye mask doesn't really help. Xiidra was prescribed, but it really stings, so I use it at night along with another drop of Systane. Husband has Refresh. Foggy and dry eyes are also affected by general hydration--still lots of days my mind tells me I am sleepy due to the blurr.

The Oral B Dry Mouth is good for about 3-4 hours. But, I have the gum and hard candies in my purse. I brush 2X day with electric toothbrush: my teeth were cracking and gums were acting up until I started doing this.

TMJ stretches: https://www.youtube.com/watch?v=Vrz25x3qnTY Cool Pack or heat helps and I massage the cheeks to keep the salivary glands/eustachian tubes clear--lemon drops help keep them all functioning. If you are ever in severe pain, get to the PCP as infections are a horrid experience. Take care.