How can i get rid of the habit of painkillers?

Professional help: It is extremely difficult, and often impossible, for people who are physically dependent and/or addicted to opioids to treat it themselves, and the success rate of people doing that is very low. There are many physicians and other health professionals who specialize in treating people with addictions, and you can find information online about your area's chemical dependency programs.

Habit forming pain: Pain killers, especially the ones with opiate medicine are habit forming and most of them lose their pain relieving effect over time and need higher doses. For a safe Detox, you should see an addiction medicine specialist and also seek non-drug treatments for your pain by seeing a well qualified and trained pain specialist. Good luck.