I think you should consult with a pediatric physician. I cannot think of any connection between the epidermal nevus and the worrisome systemic symptoms like malaise, sadness, and frequent illness, not to mention the elevated sedimentation rate and eosinophilia. A thorough medical, rheumatologic, and psychiatric evaluation would seem in order (the last because sadness may be the cumulative effect of all the rest.) I'm sorry I can't be more specific than this.
Best.
Dr. Rockoff
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Good luck.
Dr. Rockoff