I haven't heard of Rayos.
Frankly, I'm scared of the Benlysta. I'm saving it as a last resort.
Lupus, Fibromyalgia, Glaucoma, Asthma, Hypothyriodism, Sleep Apnea, Degenerative Disk and Facet Disease, and Allergies
When life throws you lemons....
Pick them up and throw them right back at them! :))