If you're anywhere near Central Florida I'll do what I can for the little guys, but I need to see them. There are many possible causes of what you are describing and I would not venture to diagnose them without an examination.
Possible causes:
1: Bacterial, "blister disease", environmental cause. Clean the cage daily with bleach, soak the snakes daily in dilute chlorhexadine or Betadine, put them on oral Baytril or IM Ceftaz for systemic support.
2. Parasitical. Treat with Droncit injectable and surgical removal/debriedment of subcutaneous parasites. Antibiotic support also as above.
3. Fungal. Treat with Itraconozole or Miconozole, orally and topically. Clean and soak as in #1, but no antibiotics.
4. Neoplasia (cancer). Surgical removal of masses.
5. Generalized systemic septicaemia. Look for petechiations (small brown spots) on the belly scales. Massive doses of systemic antibiotics IMMEDIATELY, such as intracoelomic Ceftazidine. Fluid therapy and intensive veterinary support care.
6. Abscess subsequent to physical trauma, such as prey bites. Systemic antibiotics, surgical debriedment. I really doubt this one since the appearance and distribution of the lumps even in this low resolution photo suggests a systemic problem and not local trauma.
So there are the possibilities I would look for. If I had these guys in my hands, I'd be doing some cytology on the lumps to look for the different types of cells, bacteria chains, fungal hyphae, etc. Maybe send out a culture and sensitivity test to a lab to find out what bacteria or fungus was present inside those lumps. Definitely a fecal and tracheal wash to look for parasites. I'd also be surgically debrieding the masses and examining what was inside, with some help from my vet who would prescribe and/or administer appropriate anesthetics and pain medication. That's the only part I have to pay the vet for; I do all the rest at home unless the animal needs major surgery that has to be done in the clinic for practical or legal reasons. You probably can't do most of this stuff at home, so you will definitely need to see a vet.
First and most important thing you can do at home is to separate these animals and put them in meticulously clean cages on newspaper which is changed daily. Soaking in a dilute chlorhexadine or Betadine solution couldn't hurt - buy povidone iodine from Wal Mart, dilute it to the color of weak iced tea, and soak the snakes for 10-15 minutes once a day. Make sure that debilitated snakes aren't allowed to drown, and that the soak box is left open to the air rather than closed with minimal ventilation. Basically the soak should be supervised.
You could take a guess and go ahead and put them on oral (NOT injectable) Baytril or better yet Fortaz aka Ceftaz or ceftazadime, but systemic antibiotics do not penetrate abscesses unless you debriede manually and flush them.
This is only basic support care; these snakes will probably need a lot more than that to recover. See
www.snakegetters.com for some more veterinary information on restraining and treating venomous snakes, and on finding a veterinarian who will treat the animals.