The colon is certainly an issue with respect to any congestion, skin eruptions, toxicity, lung issues etc.
In my research it appears that certain organs are related to each other in particular ways. Organs assist themselves and take over functions when another organ is overloaded.
Kidney function relates to water and as such when it cannot for some reason process that water then it relies on the lungs to assist it with removing excess water, since the act of respiration involves exchanging moisture through evaporation. So the lung and kidneys work togther in a symbiotic relationship and help each other.
Even though lung issues are related to the colon and overall toxic loads, they are also intimately connected to the kidneys.
I am wondering what the relationships are between other organs and maybe MH could shed a little light on that subject.