Haven't bothered with the vet Tygresek. Swollen feet is a condition some hens get for no apparent reason, is deemed incurable and they are culled -that's what my internet reseach and reference to my old chicken keeping books all say. Although they look terrible and painful, which they must be, she seems to have 'blocked it out'. So she is perfectly happy now and walks without moving her toes, sort of flat footed. If I thought she was suffering I would have PTS long ago. But she's full of beans, laying well and talking constantly!