Welcome to OCF! I am sending you a PM with some info to help guide you with just starting out on the forum. After a few posts you will be a pro.

Many of us including myself have been thru radiation and cisplatin. How many doses of cisplatin are you getting? If weekly it is easier to tolerate vs the 3 big bag method. Nutrition and hydration will play a huge role in how easily you get thru this. Most members have not had a problem during their first week and a few others have struggled from day 1. Every single day get a minimum of 2500 calories and 48 oz of water and you will do ok. Water is very important with chemo to flush it out of your system to avoid kidney problems. Watch closely for any hearing or vision changes and report that immediately to your doctor.

Radiation builds up over time and will continue to work for a while even after you finish treatments. Chemo stays in your system for a while too. Sorry but I do not know exact figures of how long as this would depend on too many factors including dosage, etc.

Best wishes!