Start the job by scraping away loose paint and caulking from around the door or window.
Applying interior caulking is an easy way to reduce uncomfortable drafts and save money on your heating bill. Since cold air can sneak in around windows and doors, you can stop it with interior silicone and latex caulking.
The new caulk needs a good base to adhere to.
You can use latex or silicone caulking compound that is coloured, or you can use caulking compound that can be painted.