My flock is currently experiencing Mycoplasma. We've been to the vet and he's given us Tylan soluble. My chooks have been on it for 3 days today, thats supposed to be how long i should administer the antibiotics for (half teaspoon to 2 litres of water, fresh everyday for 3 days). I just wondered how long it will take to see some improvement as they are still sneezing, i don't expect miracles and i've also dealt with this last year but i can't remember how long before they were better, does anyone know??