Natural health: Essential oils and vitamin C can help to heal a wound 

You might need to boost your vitamin C levels to optimise wound healing and tissue repair

Picture: iStock 

I sliced my thumb with a sharp knife a week ago. I immediately washed the wound and covered it with a waterproof plaster. However, it’s proving slow to heal. I’m in my 40s and in overall good health.

If it is a deep wound, it certainly can take a lot longer to heal, particularly when it is being re-opened due to movement and use. However, there may be additional factors slowing down the healing process.