infection <\/a>by the flu virus, our sinus begins to run. OTC nasal sprays provide some relief to dry up the sinus and prevent you from blowing your nose all day. However, most over-the-counter nasal sprays contain non-steroidal anti-inflammatory agents to dry the sinus. <\/span><\/p>\n\n\n\nIf you read the information sheet, you\u2019ll notice that the manufacturers recommend you cease use of the product after three days. This three-day period gives you ample time to recover from the flu and put down the nasal spray. However, some people may decide to keep using the spray past the three-day mark. <\/span><\/p>\n\n\n\nAs a result, they may develop a dry cough from the NSAIDs, as they dry out the tissues in the throat. The NSAIDS make your nasal membranes swell as well, resulting in a post-nasal drip that forces a dry cough. If you still have a stuffy nose after three days of use, consider switching to a saline nasal spray to avoid the post-nasal drip.<\/span><\/p>\n\n\n\n\n\n\n\r\n<\/div>