Wet wood

Wet wood

I need help with what I believe is rotting wood in my parent's house. Now I don't have a great relationship with them and there's probably a 100% chance they'll blame this on me which I really just don't want to deal with. This house was poorly put together. I have a sliding door that had actual frost that collected on the inside, on the base board, during the winter. I got rid of most of it by picking it off and wiping it up to keep the area from being damp. While I did what I thought I could, the wood still looks horrible. Is there anything I can do for it or am I going to have to take the [verbal beating] from my parents?
A two bedroom welsh apartment

A two bedroom welsh apartment

Finally!

Finally!

Wildflower Question…

Wildflower Question…

shameful confession

shameful confession

Ahhh!  Help!!!

Ahhh! Help!!!

Spring flowers

Spring flowers