Wattle discoloration is *usually* from inhibited circulation and/or oxygen... could be just dust or food, but if continues might be respiratory or worms even...
Denagard would be my first choice *if* you are worried about respiratory issues, since Tiamulin is unrelated to people antibiotics and has no withdrawal...
*If* going the dewormer route, I would use a good broad spectrum one like Safeguard or Valbazen unless you can get a fecal float done to pinpoint type of worms...
For now, I would isolate him and monitor, see if it continues...
Denagard would be my first choice *if* you are worried about respiratory issues, since Tiamulin is unrelated to people antibiotics and has no withdrawal...
*If* going the dewormer route, I would use a good broad spectrum one like Safeguard or Valbazen unless you can get a fecal float done to pinpoint type of worms...
For now, I would isolate him and monitor, see if it continues...