Please some advice!!!!

Hey guys!
I am a normal cannabis user no medical history what so ever!
My grandpa went to the hospital two days and is diagnosed with cancer in the esophagus... he can't even fucking eat or drink anything.
I was thinking of making hash oil for him but don't know exactly how to medicate :/ and which stain is best and all :/
Please give me some advice

Better yet there are creams that ingest transdermally....through the skin. Google it. If you're in a legal state you're one step closer to helping out your family. Good luck.

Problem is i am from Austria Europe
I would have to make it my self
Anyone has experience with that?
Sry for not mentioning my location
Thanks for the Help!