Since from your other thread it sounds as though you are dealing with a respiratory disease such as infectious bronchitis or a milder case of mycoplasma, you were told that you could use oxytetracycline or Tylan, but they won't help if it is a virus. Antibiotics only help with mycoplasma or secondary infections. You could try nothing for awhile, and watch them. If they develop more symptoms such as eye swelling, gurgling, or wheezing, then you could try a tetracycline like Terramycin or Duramycin10 since they are less expensive than Tylan. Tylan is pretty expensive running between $40-50. A packet of Duramycin or Terramycin would be less expensive.