How to Solve Red Bumps on Your Neck.
Razor bumps are created when hairs which are cut too close to the skin layer (think five blade razor close) grow back after shaving and fail to grow out of the skin. Instead, they curl over and burrow into the follicles under the skin, resulting in an unsightly bump. The inflammation in the follicle then creates a red, sore spot on the skin.
Newer razor technology is resulting in extra-close shaves. While your significant other might adore the feel, she won’t like the resulting blemishes that it causes. If you’re prone to shaving problems like razor bumps, stick with a three blade razor. Shaving with the grain can often prevent cutting the beard hair too short also. Use a product with a small amount of salicylic acid to remove dead skin cells and to uproot ingrown hairs that have started to form (which lead to razor bumps).