If you want to see the cure of a disease in your dream please do the follwoing.

After Esha salah take a Ghusul (bath) and wear clean clothes. Which were freslly washed. Without talking to anyone go to your bedroom and you have to be alone there. Lie on the bed and read 

Darood/salavat 11 times

Surah Alem Nashrah 15 times

Surah Wad Duha 15 times

Darood/Salavat 11 times

After that do a du alike this: Ya Allah please show me the cure for that disease (name of the disease) which will give complete shifa.

Inshallah within 7 nights you will see the cure. If you do not see any thing please keep on doing it.

Note: You must take a Ghusul (bath) every night