Hi,
Some patients may find this portable gap cover helpful in relieving anxiety in public restrooms.

www.amazon.com/dp/B073QC94KS

Due to high Amazon fees it's also available on eBay.com at about half the price. I'm not a sufferer but two of my close friends are. We created PottyShade to help others with this condition who travel frequently. I hope it helps.

Cheers
Andy