Hi TheWetRookie,
"Skin bends" or cutaneous DCS (a form of Type I DCS) usually presents as a constant and intense itching that doesn't need touch or movement to provoke it. It most typically affects the torso, shoulders and arms and may be associated with a mottled/marbled rash (cutis marmorata). It tends to clear within 24 hours, and often more quickly. If the diver has skin pain that requires touch/pressure or movement to elicit, it's unlikely to be simple skin bends.
As regards Type I DCS involving joints, muscles or tendons, the pain is usually constantly present until it resolves and tends to be dull, deep & throbbing. The shoulder is frequently affected, but involvement of the elbow, hip & knee also are common. Touch/pressure or movement are not needed to elicit the pain, although they may exacerbate it.
Helpful?
Regards,
DocVikingo