This is unlikely to be eczema especially as it started on your son's neck. Eczema at this age is usually on the folds of the arms and legs. Eczema usually starts earlier in chilhood than at 4 years. The red rash on either side of his mouth is also unlikely to be eczema. He has failed to respond to cortisone ointments which is unusual for eczema.It is difficult to be sure without being able to see him but the rash sounds like a fungal infection,possibly a form of ringworm. Apply Canestan Cream twice daily to the rash. If it does not clear up after 10 days of regular use of the Canestan Cream then he should be seen by a dermatologist.
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