When you first begin to wear nicotine patches to quit smoking it can take around 24 to 48 hours of wearing nicotine patches to start feeling the effects of the nicotine patch.
You then have to continue wearing nicotine patches for around 5 to 10 weeks before the nicotine patches really start working and your cravings for nicotine will be less.
It takes time for the nicotine patches to help you fully quit smoking so you need to have some patience and continue to wear the nicotine patches daily for around 10 weeks and sometimes 14 weeks until you're cravings for nicotine and cigarettes are gone.