Dermatitis skin inflammation

Dermatitis may be helped with enzymatic B6 (pyridoxal 5-phosphate)
Derma-tophytic fungi (ringworm and athlete's foot) may be helped with tolnaftate used as an oil. 
Tolnaf oil is an antifungal oil.
Derma-tomyotitus (connective tissue disease with arthritis like symptoms) may be caused after parasites have changed sugar structures.  Glyconutrients such as mannose may help.
pg 25
Elkins, Rita - The New Class of Missing Nutrients.
Eczema is helped with glutathione & histidine per Erdmann in The Amino Revolution