A cure for all diseases. How to answer the next sentence humorously is as follows:

1. A cure for all diseases, and buy one to relieve the unhappy mood.

2. it's unreasonable to treat all diseases.

3. There is nothing for girls that can't be solved by buying a bag. If there is one, buy two.

4. there is no panacea that can cure all diseases.

All diseases can be cured. In the old days, all diseases can be treated. Now, the bag can relieve people's unhappy mood.