The answer to 'fumigation problem' is that common causes of fumigation issues include improper application, poor sealing, and environmental factors. Symptoms may include lingering odors, unresolved pest infestations, or health concerns. Solutions depend on the specific problem, but often involve re-fumigation by a professional pest control technician.
Fumigation is a complex process that requires specialized training and equipment. While some minor issues may be addressed with additional ventilation or targeted treatments, most fumigation problems should be handled by a licensed professional. Attempting DIY fumigation can be dangerous and may make the problem worse.