Why you’re feeling it
Your brain is begging for another hit of nicotine.
How long it lasts
For most people, cravings are strongest in the first few days after quitting. Some people have cravings occasionally for months or years.
What you can do
Wait it out. Your strong craving will probably last just a few minutes. Try another activity - have a drink of water, take a walk, call a friend or use a nicotine replacement product (for example, NRT gum).