I am so sorry to hear this. You are right, it can be dangerous to younger pigeons more than adults, but if the youngsters you have are strong and have the willpower to survive they have a good chance of making it through okay. Let's see what we can do.
Since pox is a viral infection with no known antibiotic treatment, the best thing to do is to use natural alternatives to try and dry up the pox and help the pigeon quickly heal on it's own. First, try and acquire either Colloidal Silver (liquid) or more preferably some Thuja Occidentalis tablets (
http://www.amazon.com/Thuja-Occidentalis-30X-100-tab/dp/B000F4XPZI). These are for internal use and will help to prevent/flush out any pox affecting the internal organs and system as well as help slow down the formation of external pox nodules. If you can get Colloidal Silver, use 3 drops down the throat of each young pigeon twice a day plus a drop in each eye twice a day. The dosage amount for Thuja Occidentalis is 2 tablets twice per day (2 in the morning, 2 in the evening) for the first two days and one tablet twice per day (1 in the morning, 1 in the evening) after that for 1 1/2 weeks.
Next, you will need something to swab onto the pox lesions to lessen irritation and dry the lesions up. For this, straight Tea Tree oil diluted 50/50 with water or straight Thuja Oil (
http://www.essentialoils.co.za/essential-oils/thuja.htm) is the best thing to use. You could also use diluted Betadine (1 part Betadine, 3 parts water) or straight Neem oil, but they are not quite as effective. With any of these remedies, use a cotton swab or q-tip and apply to any external lesions you can see twice a day,
except lesions near the eyes, face or beak. Besides Neem oil, especially do not get the stuff near the eyes or in the mouth! Keep swabbing the stuff on until you see absolutely no more pox lesions - it could take a couple of weeks for this.
Also, if any pox is growing in/near their eyes or beak, it is dangerous but there is not much more that you can do except swab/drop some colloidal silver on the lesions. If the lesions begin to get really bad in these sensitive areas, you can also safely swab on a little bit of Neem oil to see if that will help any further.
And finally,. pox is contagious not to humans, but very contagious to other pigeons and some other species of birds. Please keep the baby pigeons away from any other birds you have and make sure to wash/disinfect your hands and any other instruments used when handling or treating them to help prevent the spread of the virus.
Try not to mess with squeezing or pulling the pox bubbles at this time - it is probably painful to the pigeon and the pox nodules can bleed. Once the pox begins to dry up for a little over a week, some of the nodules will be at the stage where they can be pulled off and removed. Just be very careful with nodules in/near the beak or eyes.
The reason pox is more dangerous to young pigeons than for adults is because young birds are commonly troubled by pox near/in their eyes and in their beak and throat. If it gets too severe, it can be very painful for them and cause them to stop eating and possibly block their breathing or make them go blind. In a case like this where pox is greatly swelling up both eyes on the pigeon, pox is growing in the mouth/throat and preventing proper breathing, and/or making the pigeon not eat for over two days, the pigeon should be humanely put to sleep as it is going through too much and has little chance of survival.
I hope this information will help, and again, I am so sorry. I have been through a lot of heartbreak with having loved birds pass on even though I tried to do everything I could to help them. Even then, it warms my heart to see the ones who have made it through live happy and fulfilling lives.
Best of luck, and I hope they will make it through okay!
Faith