My 4 year old boxer had a lump which appeared on her back before i took her to the vet is burst and let out puss and blood. The lump has now gone but has left a patch where there is no hair can you help

Hi,Hilary,
This sounds like a 'sebaceous cyst'.
It may be necessary for your vet to cut it out to prevent it recurring.
Walter

Applying Vitamin E to the skin may help hair to regrow (pierce a capsule of 1000i.u. Vitamin E and apply to the skin daily). Or try Dermagel - a herbal gel which stimulates healing and promotes helps hair growth (didn't work for my bald spot, mind you, but seems to help dogs!)

Richard Allport BVetMed, VetMFHom, MRCVS
Natural Medicine Centre: Natural medicine for pets and for people
11 Southgate Road
Potters Bar
Herts
EN6 5DR
Website: www.naturalmedicinecentre.net