That's quite true Mrrzy. If one starves it of air (they breathe through the tip of their body) by putting grease over the top, they pop out themselves after a time. But the Plastic Surgeon just thought it would be best to make a small incision and cut it out, then put in some stitches.
That wasn't the end of the problem though, because my poor husband got keloid scarring (quite common with black skin) and had to have steroid injections many weeks later.
African women usually iron clothes with a charcoal-filled iron, which kills off any tumbu eggs. But I don't think my husband's sisters did this.
Fascinating creatures though (tumbus, not my lovely sisters-in-law, although they too are fascinating!).