Answer: sweeping the chimney is the best solution.
Of course, your first reaction was to put the fire out immediately. But what can be done to prevent this from happening again? You should contact as soon as possible a certified chimney sweep company which will bring a specialist to your home to inspect your installation. It is likely that the smoke exhaust duct is simply blocked. Perhaps you forgot to have your chimney swept? Know that it must be done at least once a year, and even more if you make chimney fires on a very regular basis. On the other hand, if you have swept your chimney recently, it is because the problem comes from elsewhere. Your installation may not comply with current regulations or may have a manufacturing defect. In this case, the chimney sweep should notify you. You too, send us your brico question