Riviersonderend South Africa | Posted the same Q not long ago What really worked for me was a farmers recipe I got mixing 5 l of petroleum gel with 150 ml of Zeopar from Bayer Animal Health and rubbing it on the animals face ,one handful will do. Tried it the first time this year and it helped a lot ,do it every 45 days ,it keep the flies away from the face of the animal Greetings Solly |