L. Volatile oils such as those found in the armpits may be responsible for this rash, but it is really not a big deal. The most important thing to remember here is that you should never use antiperspirants containing aluminum chloride or aluminum chlorohydrate because these substances actually inhibit sweating! Aluminum Chloride and Aluminum Chlorohydrate are known irritants of the skin which lead to rashes, though they are very rarely used today due to their potential toxicity. If you have sensitive skin, it might be wise to avoid using any type of deodorant containing these preservatives altogether if possible or switch them out with an unscented one (otherwise try using Witch Hazel instead!)
Q. How do I prevent my underarms from getting red?
A: Exfoliating your pits can help keep them smooth and free from hairs by creating shiny post-shaving areas where hair doesn’t grow quite as densely anymore. It also helps reduce ingrown hairs caused by shaving too closely or irritation at some point during your shave routine when rubbing against buried hair follicles called hyperkeratotic papillae. This is why double edge razors are so popular amongst wet shavers – they create much less friction on the skin than many other types of facial shaving methods so will allow for gentler exfoliation without scraping away too much of your precious whiskers (and sometimes even more!). You can buy pre-packaged scrubs like