How long does it usually take from first contracting eczema herpeticum to the skin breaking out with fluid filled spots/crusty skin?

Eczema Herpeticum: 5-12 days. Read about it here===>http://www.Buzzle.Com/articles/eczema-herpeticum-symptoms.Html. As you probably know, there are less common, but potential more serious side effects than the usual blistering rash, fever, and discomfort that you get with an attack. It is best to contact your dermatologist to discuss controlling and treating the attack.