Just simply release the hairs from the glue by spraying a bit of lace-release onto a cotton pad and dab at the hairs [ rather than spraying it liberally thus risking loosening your `good` bond]----you just need to release the trapped front hairs. Then carefully dab on glue-melter [on a cotton pad] to the `unwanted`/ excess glue on your forehead , allow it a few mins. to work, then wipe it off with the pad....... Paul.