Can you have botox if ur on steroids for rheumatoid arthritis. Been told the botox wont work

Because the steroids used to treat rheumatoid arthritis and the active components of BOTOX function within the body very differently, there should be no impact on the results of your BOTOX because of your RA medication. I would, however, be sure to double check with your doctor and an experienced, qualified BOTOX injector to let each of them know of your situation. There should be no drug interaction, but it's always important to be completely up front about your medical history.

Botox works just as well on my patients who have rheumatoid arthritis and scleroderma and other connective tissue diseases including patients who take their prescription steroid medication for these inflammatory conditions as it does for those patients who don't have these diseases or take corticosteroids.The information provided in Dr. Shelton's answer is for educational purposes only and is not intended to constitute medical advice.  The information provided should not be relied upon as a substitute for consultations with a qualified health professional who may be familiar with your individual medical needs. 

It should be fine for you to have Botox while taking your medication for RA.  The two medications should not affect each other.  Be sure to see an experienced injector near you to learn more.