I am new here and have a question.I have read about vetrx and using it when your chickens have runny nose's and cold like symptom's.Now my question is will a little vicks vapor rub put under the wing like you would with the vetrx have the same effect?They both contain camphor and are used for congestion.I have been giving them duramycin-10 for 2 days now and not really helping much.Should I increase the dose of duramycin?I have been using a 1/4 teaspoon for 32 ounces of water.Which is a 400mg dose or should I increase it to the 800mg dose?Please help me I don't want to lose my 5 white cochin bantam's which are 3 to 6 months old.