You raised a good point: how to heal effectively is another complex and difficult question. Science often tries to know what’s wrong (the problem) first, followed by why (the cause), and then only the how (i.e., how to fix it; treatment). And the last one is challenging and we often get it wrong. Seems like science and medicine still have a long way to go. But a lot of funding — by the billions — has been put into long-COVID research, and hopefully, fruitful findings will come by in the near future.