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.
A bad taste in the mouth can be caused by a variety of conditions including dental or gum problems, dehydration, medication (such as some antibiotics and antihypertensives), a yeast infection in the mouth, an autoimmune condition or a respiratory tract infection.