I appreciate that you may not be allowed or able to state that a particular product or method will definitely do this.
Any suggestions are welcome.
Replied by Helpyourself (Texas, US) on 01/07/2015
You could try using ice to numb it first.Replied by Omi (New Mexico, US) on 01/07/2015
You might try stuffing a tiny tiny bit of cotton that is soaked in castor oil and half baking soda under the nail on the side that is ingrown (I gently use a toothpick to move it under the nail). By the next day you may feel relief.