Hi. Thank you for reaching out to Health Care Magic. Coughing with force may cause the Co2 levels to rise in the body. This is when there is hypoxia or low oxygen levels developing. This may cause one to feel dizzy. Along with this, the coughing reflex can also irritate the uvula which can cause one to feel nauseous. This nausea along with the dizziness may contribute to the light headedness. The increased pressure in the chest may also be felt as pin and needle sensation. Many people find the following useful - Gargling with warm salt water Keeping the throat moist Taking cough lozenges Drinking lots of water Getting lots of rest Sleeping well I hope this helps. Please reach out to me if you have any other questions. Dr Vignan