My hands hurt

thats caused "sometimes" by poor circulation, washing any part of your body after strenous work leads to this, sometimes leads to as worse as varicose veins... All I can suggest is get a hot water and dip your hands into it as much as you can until it wont hurt anymore...

It happened to me that I cant even hold a pen, I was gardening, when I transferred to the next plot I used my hands to scratch and clean the soil, then planted by hand... after that I moistened the soil and my hands got wet too, after that day my hands hurt so bad...

Depending on the type/style of massage it can be normal to hurt a little after (not so common in hands), you didn't say if you had the palms or tops of hands massaged (or both), if you have arthritis the massage could of inflamed the joints.
two to three days should be back to normal, just keep using them unless swelling starts (and/or bruising) then consult a doctor.

What a massage does is release locked muscles; in layman's terms:
hold your hands in front, palms towards you with fingers spread, now inter lock your fingers. This is what a knot is, bound tissue, what a massage does is to release the knot making so the fingers (muscle fibres) can flow freely between one another.

There are lots of styles of massage, some soft, some deep tissue ...
Reason I know this, cause I am a qualified in Swedish massage, was going to do it for a carreer but there are some scary naked bodies out there. nah, real reason is my knee couldn't handle it.