If you have ever accidentally let an ash fall from a cigarette onto your clothes, you know how unsightly the resulting burn or burn hole can be. This is actually a fairly common occurrence, and thankfully there are a number of ways to repair holes like this in most fabrics. While cigarette holes in wool can be a little more challenging to repair, you can do it with a little patience and the proper tools.
Vacuum up any loose charred material around the burn hole. This will clear the area so you have a clean surface with which to work.
Rub away any charred ends around the hole gently with fine sandpaper. This should leave you with just a clean hole to repair in the coat.
Shave off some extra fiber from an interior hem or seam in the coat with a sharp razor.
Arrange the shaved fibers into an appropriately sized and shaped plug for the hole in need of repair. Apply a small amount of fiber glue to the plug to bind it together.
Position the plug in the hole of the coat, and apply a small amount of fabric glue to the inside of the coat around the hole to bond the plug to the hole.
Use tweezers to arrange the fibers in the plug so that they blend with the surrounding fabric of the coat.