Conversation so far:
What was the health issues did Bad Brains frontman H.R. have?
On March 15, 2016, Bad Brains frontman H.R. was reportedly diagnosed with a rare type of headache called Short-lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT syndrome)
Was there anything to cure H.R.'s rare type of headache called Short-lasting unilataeral neuralgiform headache with conjuctival injection and tearing?
As diagnostic criteria have been indecisive and its pathophysiology remains unclear, no permanent cure is available for short-lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT syndrome)
Are there any other interesting aspects about Bad Brains' health issues besides H.R. rare headache?
On November 3, 2015, Bad Brains announced on their Facebook page that Dr. Know (Gary Miller) was hospitalized and on life support, after many other musicians reported so.

Question: What did they do in 2015?
Self-contained rewrite: What did Bad Brains do in 2015 after Dr. Know (Gary Miller) was hospitalized on life support?