Well, as you specified you can repaint the area and I am sure there will be several suggestions for that but one less artistic way is:
Make a (careful) selection of the offending area.
Move the selection, that is the middle icon in the tool options, and move to a suitable section of hair. It is possible to rotate a bit and get a better selection but keeping it simple....
Copy the contents of the selection Edit -> Copy then Edit -> Paste As -> Single Layer Move the layer (that is the first icon in the move tool options) over the offending area. (I put some guides in to indicate the area.)
Make a (careful) selection of the offending area.
Move the selection, that is the middle icon in the tool options, and move to a suitable section of hair. It is possible to rotate a bit and get a better selection but keeping it simple....
Copy the contents of the selection Edit -> Copy then Edit -> Paste As -> Single Layer Move the layer (that is the first icon in the move tool options) over the offending area. (I put some guides in to indicate the area.)