Unfortunately, the smell from a dead animal can take weeks and sometimes months to disappear. The problem with dead animals in a wall or somewhere in your house is that the dead tissue breaks down and the decaying tissue produces liquids that can seep into the wood in your walls and floor.
The following drugs, medications, substances or toxins may possibly cause Bitter tastes as a side effect. [ See detailed list of 23 drug side effect causes of Bitter tastes 1  ]. Sinemet. 2  Sinemet CR. 3  Lodosyn.
Questions for diagnosing the cause of a bitter taste in the mouth. To diagnose the underlying cause of a bitter taste, your doctor or licensed health care provider will ask you several questions about your symptoms. Giving complete answers to these questions will help your provider diagnose the cause of the bitter taste: