Becky, be sure to rule out nipple compression (trauma) from suboptimum
positioning, poor suck, etc. and thrush. Might just be friction on the hard
palate that will go away when baby's better at strippng the sinuses not the
nipple itself.  Kay H has a slide of a skin tag that was so painful mom
couldn't bear nursing. Probably can't change the nipple. Last resort if
nothing else works might be a nipple shield (no, I haven't gone mad) with
some hand-expression to help support supply if prolactin response is
compromised by the shield.  And mom could take mild pain
reliever/antiinflammatory to see if it helps.  And check with a dermatologist
for other ideas.

Linda Smith, BSE, FACCE, IBCLC - Dayton OH