Those with eczema might be more susceptible to developing yeast infections, also called Candida and thrush. Both forms of yeast develop in the presence of warm, moist skin. Older studies show Candida to be a possible cause of eczema, especially in infants, and that treating Candida may possibly help in reducing eczema symptoms. Symptoms of a fungal infections include redness, itching, scaling, blisters or the skin becoming cracked and sore. You might also have lesions in your mouth.