please help regarding my query

my fiance has quit smoking yesterday and now he is feeling weakness sore throat and hands are shivering so what are the precautions to be taken

Try nicotine lozenges, patches, chewing gum, counseling, and other smoking cessation methods. Just don’t give up, kick the habit,. Ask your doctor if hypnosis is an option for you. Some studies have shown that hypnosis may help certain people quit smoking.