The steroids you take for your Rheumatoid arthritis should not have any effect on your Botox or vice versa. Just let your provider know beforehand and you should have nothing to worry about.
Both Botox and Juvederm are safe for people with keloids, the risk of scarring is extremely minimal with both procedures. If you discuss this concern with your provider beforehand, you should have nothing to worry about.
Thank you for sharing your excellent question. I would recommend first speaking with your PCP and/or urologist to discuss your testicular discomfort. Assuming they see no other issues taking place, a neuromodulator can be injected to provide muscle relaxation. Hope this helps.