Thanks for putting your query up at HealthCareMagic. You have not indicated what sort of paraffin the child has taken - whether it is soft paraffin, liquid paraffin or kerosene. Paraffin is poorly absorbed by the gastrointestinal tract but there is often aspiration into the respiratory tract especially if the child vomits. This causes pneumonitis which may be so severe as to cause pulmonary oedema and hypoxaemia. Such features usually occur within hours but may be seen a day or so after ingestion when the child becomes breathless and feverish up to 40ºC. The signs of pneumonitis also include cough, tachypnoea and tachycardia, cyanosis, pulmonary crepitations and rhonchi. However a chest X-ray often shows pulmonary changes (non-segmental consolidation or collapse, especially on the right side and lower lobes) even without pulmonary physical signs. Had I been able to see the Chest X-Ray, I would have been able to comment better. I am sure that you may tally the case of your baby with the details I have provided, and arrive at a conclusion yourself. If he has not been vomiting, and if your doctor says that the chest is clear, probably it is just a case of common cold. I hope that answers your query. Feel free to get back with the details and I would try to help you further.