Is itchy skin from head to toe a sign of allergy?

A small itchy skin newest Board Review: question sauce Sam : Is itchy skin from head to toe a sign of an allergy I have in my complete physique (such as the face and scalp all the way to the ground my feet) itchy for a few days now. I feel that this is a scary crawly sensation beneath the skin. What ought to I do? Am I allergic to some thing? Can anyone give me some tips on what could be causing this? Ought to I see a medical professional or a dermatologist? I have no rash and no other

Itching Urticarial Rash