Most start feeling the radiation effects, neck redness, others, between 10-14 days. Are you using the recommended cream own the neck? I agree with the hearing loss, ototoxicity, which is caused by chemo destroying the hair in the inner ear, cochlear, being hair is a fast acting cell, like cancer. Once the hearing is lost, diminished, it may not come back. I'm blind in one eye from chemo, which can effect the eyes too, so watch for vision changes, eye infections. Sounds pretty normal, so far, and can't say with my high dose cisplatin since I had tinnitus for 20 years, but did progressively worsen since then. Keep up the good work.