Hi. There is a study saying that Ambroxol is useful in fibromyalgia. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5566330/ It is too long and my brain is fused and I can not understand if it would be useful in CFS / ME. Someone help me? The good news could be that it's cheap and it can get very easy. It is a mucolytic. Thank you.