Bad Rash!

The first time i used this i thought the colour was really good until a few hour into the day my freind notice a few red patchies on my arm..i put it down to me having sensitive skin. I used this product for the second time this morning and its now 9pm and i have like the worst rash ive ever seen n my life, its more like a burn its really deep dark red and very noticable!, I never notied it untill My partner came in from work and asked what id done to my arm! I wouldnt Recomend to people with very sensitive skin!