Deodorant Users Claim Popular Product Is Causing Horrible Burns on Their Armpits People are filming the reactions and showing them in real time. ET Source: megsk.in/TikTokPeople who use Mitchum deodorant are sharing horror stories about rashes, burning sensations, and infections that they claim they got after using the company's products. You can find out what Mitchum had to say about its deodorant causing burning armpits, what the company plans to do about it, and which deodorants are causing the burns below. Article continues below advertisementPeople claim that Mitchum deodorant is causing their armpits to burn and develop painful rashes. TikToker @megsk.in shared her story on the social media platform, taking a video of her armpits before, during, and after using the deodorant.