The poison is a neurotoxin with fairly low toxic effects on people, relative to its effect on insects. At low doses it works as a repellent for insects, but at higher doses it kills them by over-exciting their nerves. At very high doses, it can be a fairly toxic product for all forms of animal life.
Razor burn is not an actual burn, but an irritation of the skin. The affected area will look red and may even swell. Itâs common for razor bumps, also known as pseudofolliculitis barbae, to appear in the area. Razor bumps are tiny, red bumps that sometimes itch and feel tender to the touch. Razor bumps and razor burn are temporary and can heal on their own in a few days.
1 Witch Hazel: You can also try razor burn remedies such as witch hazel, which is a gentle astringent. Like aloe, witch hazel will soothe the skin, and like an after-shave, it will also get rid of bacteria.  Tea Tree Oil: Tea tree oil is sometimes recommended as a cure for razor burn.