The smell indicates that the carpet was not properly remediated, cleaned or dried. The best resolution of the situation is to call The Professionals at PuroClean. They have the training, knowledge experience, and expertise to determine if there is damage, the extent of that damage and then to properly dry and restore the materials, including replacing materials that cannot be saved. Do not wait. Every situation is different! For the best, specific advice, please call your local PuroClean as soon as the damage is discovered.