Spurge does not bear its name for nothing
The roller wolf milk bears its dangerous-sounding name for a reason - just like all other of the estimated 2200 different species of the milkweed family. After all, a hungry wolf is just as vicious as the milky sap of the plant, the ingredients of which can cause skin irritation and even severe burns. The latex-like milk juice cannot be completely removed with soap and water, but it can be removed with fatty creams. As soon as the mucous membranes (mouth and throat, digestive organs, eyes) you should definitely consult a doctor!
Never work with milkweed plants without protective measures, always use gloves, long clothing and protective goggles. The milky sap will leak out even with minor injuries.