Yes, that looks to be safe for animals, and is the same as a US brand Vetericyn eye wash that is used with chickens. Sometimes eye drainage and crust are due to a bacterial respiratory disease, mycoplasma gallisepticum (MG.) If you notice other respiratory symptoms, such as sneezing, head...
Are you in a country where you can buy antibiotic ointment over the counter? Plain Neosporin, Triple Antibiotic, Polysporin are good. Erythromycin or Oxytetracycline ointment as in the Terramycin is good. Eye drops such as ciprofloxacin are very good. You may need to consult a vet if you cannot...