The bird named Jasmine, give 1 canker tab, once a day for four days since you already did one. Then give vitamins-electrolytes, and Probios powder in the water for 2-3 days. Keep an eye on the bird's droppings since it represents digestion, and tell us how the bird is behaving during that time. Depending on the bird named Jasmine's condition will determine whether it is time to worm or not after blackhead treatment. I would have wormed first, then done the canker treatment in that 10 day window between the 2nd worming. The second pic of your other birds' droppings seems to have undigested grains in it. Do they have access to grit? Are the birds besides Jasmine active, eating and drinking, and behaving normally?
I would suggest worming the rest of the flock when your Valbazen arrives in the mail. Then give them Corid for 5-7 days in their water. Then supplement water with vitamins/probiotics for 3 days, then worm on the 10th day. Hold off on Jasmine until you finish blackhead treatment. Like I said, keep us informed of the bird's condition during treatment.
I would suggest worming the rest of the flock when your Valbazen arrives in the mail. Then give them Corid for 5-7 days in their water. Then supplement water with vitamins/probiotics for 3 days, then worm on the 10th day. Hold off on Jasmine until you finish blackhead treatment. Like I said, keep us informed of the bird's condition during treatment.