That is the recommended "Gold Standard" treatment for HNSCC you are getting, so many others have have gotten it. Cisplatin, a platinum based chemo, has effects on the nerves, kindeys, mucus lining, and can cause vomiting and nausea, so careful monitoring, hydration, is needed during infusions. The kidneys clear the Cisplatin from the body, so it doesn't stay long, so as mentioned, drinking adequte water is necessary. Side effects can vary since acute and late stage toxicities depend on the person, type of chemo, as mono therapy or as a cocktail, amount of dosage, duration and speed of the infusion, underlying medical conditions, and if given with concurrent radiation can compound toxicities. Most side effects are temporary since normal cells can repair themselves unlike cancer cells, which do not, and should go back to normal after treatment ceases, but some can be permament like hearing and vision problems, neuropathy, kidney problems, bone marrow supression, so these need to be checked by your doctors. Smaller weekly infusions are more tolerable than larger three bag dose treatment spread over the 7 weeks. Some get Carboplatin instead to reduce toxicities. Good luck with everything.