If you have a rash, burn, broken skin, or sunburn in the area that will be pierced, you must wait until the skin has healed before you can receive the piercing. It is possible to pierce through scar tissue (to re-pierce an area where you used to have a piercing, for example), but the scar must be completely healed. If you remove a piercing and wish to re-pierce the area, in most cases you should wait for one to two months after removing the jewelry for the old piercing to fully heal.