Been there, done that, got the T shirt.

Don't know what you can do to fix it but certainly don't rub your eyes or any other sensitive skin. I eventually blistered slightly on the tips of my fingers and they were numb for a good few days. Absolutely fine now!

Mine was from an unripe H.sternia that had a broken flower stem and I forced the pods open to salvage the seed, still quite juicy. Never had it before, more careful now not to force pods.

Commiserations, Greenmanplants

I did the same thing last year harvesting seeds; not normally sensitive to plant saps, I've never had a reaction to euphorbia, monkshood or any of the others that people complain about. You could feel the burning for a few days, and later experience some peeling. Soaking your hands after washing, applying a bit of 1% cortisone cream might help...that's what I did, although I have no proof that time might not have done the same...No lasting damage here, just a little uncomfortable. I'll be wearing latex gloves gathering h. foetidus seeds from now on (or any of them).

My fingers aren't burning anymore but they're still sensitive. I can't touch anything hot. My eyes started burning when I was picking out seeds but that went away pretty quickly. I didn't think to use aloe but that might have helped too.

I generally just cut off the brown flowers and stems (didn't know about harvesting seeds). Are you all saying that the sap in hellebores burns? What in the world is in it. Maybe that is why pests tend to leave it alone.

I have had an occasional aphid infestation (maybe aphids don't have nervous systems, or don't become depressed) on new growth on my h. Foetidus, happens when the new stems are appearing before I've removed the foliage and flowers from the previous season...If I'm not paying attention I can miss the problem with the new tender shoots...
Hellebores:
"Poisonous Part -
All parts.
Symptoms
Possibly causing burning of mouth and throat, salivation, vomiting, abdominal cramping, diarrhea, nervous symptoms, depression.
Toxic Principle
Protoanemonin.
Severity
TOXIC ONLY IF LARGE QUANTITIES EATEN. SKIN IRRITATION."