Allah made for every sickness a remedy. We must not accept that there any sickness without remedy. The Prophet Muhammad mentioned that for every sickness there is a cure
One day Nasreddin Hodja was riding his donkey backwards, facing towards the back.
- Hodja the people said, you are sitting on your donkey backwards!
- No, he replied. It's not that I am sitting on the donkey backwards, the donkeys facing the wrong way.