system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What exactly is eczema, and why can't it be treated?
gpt
Eczema is a skin condition where the moisture barrier breaks down and causes red patches of skin (dermatitis- inflammation of the skin). There are a few different types of Eczema ranging from mild to severe. There are also types that run in families. Eczema can be treated with special and sometimes expensive lotions or creams. Weather seems to have an effect on this condition. When there is a lot of moisture in the air (depending on your region), it helps to break own the moisture barrier at a faster rate in the skin causing more break outs. There are also specific locations where Eczema starts. Mostly at the inside of where the knees and elbows bend.