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.
It is also important to differentiate if the taste is truly salty, or if it is more metallic in nature. A metallic taste is usually caused by bleeding in the mouth or as a side effect of a medication. A salty taste on the lips, and in the mouth can have a wide range of causes, some very common, some very rare.