I don't think it's in your immediate constellation system as it's the other side of the Alpha Quadrant from Sol. I would need some access to star charts to know for sure, but I think it's west.
Rashes and welts are not uncommon. I always try and check before commissioning a garment of the fabric to avoid any awkward situations.
Quite often. Lwaxana Troi always loved to provide the most interesting jobs whenever she was on the station. Layers upon layers of fabric, extremely colorful, and highly impractical.