Relating to, affected by, or of the nature of eczema.
From eczema + -ous (characterized by). This is the standard adjectival form derived directly from eczema, meaning 'having the qualities of eczema.'
Medical textbooks constantly use 'eczematous dermatitis' to describe cases—it's one of the most common descriptors doctors write in patient charts because eczema is incredibly prevalent in modern medicine.
Complete word intelligence in one call. Free tier — 50 lookups/day.