Yes, irritations and rashes are common if deodorants contain lots of different chemicals and coloring.
Most deodorants out there don't work ! After using certain dri-antiperspirants, I became disliking the fact that it can clog up and preventing sweating and I don't want that. I try to stay away from any antiperspirants and deodorants that leaving bad smell behind, irritating too much or give me rashes.
Since I have very bad underarm smell, I finally found one deodorant that really works for me.
I have a terribly bad funky armpit odour, like cockroach smell, so I need deodorant. however not just any deodorant, because I don't want it to dry-up or clog up my skin or give me bad smell afterwards. I've been using UARMSOL deodorant for many years now and I have no more armpit odours. Even when I sweat I don't have any odours, this deodorant works great and I'm loving it. I can't go out in the day without putting it on. Even when I sweat my armpits don't have any smell. I applied 1 pinch and it's all to it for the whole day without worries about any smell afterwards. There's no after sport smell or odour masking. I would recommend it to anyone who has underarm odour.