 [ Symptoms ] my kid was diagnosed with hand foot and mouth disease by one doc and chicken pox by another [ Disease ] i would go with chicken box cuz hfmd usually goes away without treatment also hfmd does not show neck or trunk rash and no chicken box does not rash on palms and soles so u should consider other conditions as erythema multiforme tinea enteroviral infection coxsackievirus echovirus rocky mountain spotted fever scabies secondary syphilisgood luck