Hi Joanne
Am pleased your Father in law is now on the treatment regime, and the advice I can give is for the pending treatment is Rest and take one day at a time:-D
Your Father in law will have his off days/weeks? but you will know it wont be "Him" it will be the drugs:-/ and not forgetting you and mother in law need your rest also.
Good Luck to your Father in law in his treatment 🙂
Love
Tom "Onwards and Upwards" xxxxx