repairing a wooden comb

[Fernando Toral <ftoral@xxxxxxxxxxxxxxxxxxxxxxxxxxx>]

I own a Hohner MS Blues Harp. Maybe because of the use, the cover paint
of some parts from the wooden comb is gone, something that does a little
harm to my tongue, especially while tongue blocking some holes. I wonder
if there's a way to repair this, if there's a special paint, wax or
else.
Thanks

Fer