chen yuntao , 38 , wears a horse mask as he kneels on busy streets of hefei city , next to a sign asking for ` kind-hearted ' people to get on his back for five yuan .
the family is 160,000 yuan -lrb- £ 17,500 -rrb- in debt for treatment he has already received , having already spent 200,000 yuan -lrb- £ 21,800 -rrb- on medical bills .
the next course of therapy will cost between 400,000 and 500,000 yuan -lrb- £ 43,600 -rrb- .