Thanks for your query, I have gone through your query. The severe tooth ache can be because of the tooth infection secondary to decay. Consult a oral physician first and later you can start with these medicines. The tramadol is narcotic analgesics, it works well for the tooth pain. But it is an adictive drug. Cocodamol is a combination of codiene and paracetamol, which is again a narcotic analgesic. You can take only one of these two tablets not both, because they both belong to same group of drugs and carryout same function. Even after taking this pain will come back once you stop these medicines, so we need to treat the cause. So get the tooth treated with RCT or extraction. If I am your treating doctor, i would have prescribed a course of antibiotics like amoxicillin 500mg and metronidazole 400mg tid for 5 days (if you are not allergic) for the tooth infection along with the analgesics.. I hope my answer will help you, take care.