you use some running water to wash first, and put some (商) 飛人, very good ar no more painful. Last time when my son still 2 yrs old we go to eat noodles and he push the bowl, many noodle soup drop on his hand the ee give me the (商) 飛人, after we finish the noodles no more red colour on his hand lu. This (商) 飛人 is very good for many use also.