Is aloe vera a good sumac poisoning help?

Sure. Some patients do find that aloe vera gel, lotion, etc. Helps dry the skin in the involved area and make the problem feel better. However, some people can have a reaction also to the aloe vera, so use with some caution.
Yes-but. I agree with dr. Shenenberger. But - all sumac plant residue should be removed from the skin first. Otherwise remaining urushiol will be spread on the skin as you apply the aloe vera- increasing the area effected.