Change your Method of Shaving
You may not be aware of this, but one of the reasons why you could get ingrown hairs is because of your manner of shaving. Shaving too closely on your skin could trigger razor bumps which are one reason why you get ingrown hairs. If you shave too close on the skin, the hair stubs will most likely be trapped on the follicles and will dig deeper on your skin. So the next time you shave, do not put too much pressure on your shaver. It will also help if you make use of a single blade razor instead of razors that come with multiple blades.
Image from Huffington Post