Heat rash according to Chinese Medicine

Talc might help with heat rash

Why might Talc (Hua Shi) help with heat rash?

Because it is a herb specifically indicated to treat heat rash as can be seen on Talc's page.

Talc is a Cold herb that tastes Sweet. It targets the Bladder and the Stomach.

Its main actions are: Encourages urination. Expels Damp-Heat from the Urinary Bladder. Dispels Summer Heat. Dries Dampness when applied topically.

Read more about Talc here