Hi Rana Mukherhjee Welcome to HealthcareMagic. Tail bone fracture happens due to a bumpy ride like you had .The treatment depends on severity of symptoms and so if pain relief medications dont suffice , surgery can be opted.A higher dosage or a combination of various analgesics may be needed in your situation.I advise you to see your Orthopedician and explain him the persisting symptoms and discuss the option s like injection of a steroid o lignocaine at the sacrum and surgery. Please avoid stress on your tailbone by not sitting continuously and by using a cushion.Please take soft diet to avoid constipation which can happen secondary to pain. Take care.