Thank you for your query.
There is no reason to panic. There is usually no relapse of chickenpox
after its occurence in 40 yrs.If the lesions resemble chickenpox and appear on palms,soles and throat then it is "hand foot and mouth" disease.This is a viral infection which is self remitting and has no complications as such. These will disappear within 7 days without leaving any scar.Hope this answers your query.
Have a wonderful year ahead.