Not much more I can add to what Claire posted. How many kits did she have Cheryl?
I use Homeopathic meds here at my home for the family and animals. While I know you do not have these on hand, I will tell you what I might have done if this happened to me. These meds can be bought at a healthfood store or whole food store. Or online through some of the companies listed below. I keep both the Arnica and Hypericum at all times. I don't have the space to explain these meds. So I will condense to say that what the body doesn't use, the body expells. I have used both meds on chins with no ill effects.
I would have used a homeopathic medicine called Arnica. It is used for trauma, bruises and muscle soreness. I would have chosen it for the trauma and pain the kit went through at birth. And a follow up with the med Hypericum. Used for nerve pain. As the flesh is exposed.
In this case the pellet can be diluted in a bit of water. Since we have no directions for something so small, I would cut off an 1/8 and dilute it in 5 ml of water. The 5ml of water would be sucked up in a syringe first and then put in in a shot glass. Dissolve and suck up in the syringe and given one drop orally. Same procedure to dissolve each. And wait for an hour and see how the kit responds. I would have been looking for the kit to be standing alone and alert. If so, I would give another drop of each in an hour. In the afternoon I would than only give one last dose of Hypericum. In hopes the kit can be spared of as much pain as I could offer through the med. I might put a light coat of some salve on the bare skin. I know how skin feels when it has a cover after you have a bad scrape. Relief.
For human application of the med one would place it under the tongue to disolve. In the case of chins I have just desolved in a tiny bit of water in a shot glass. These meds have such a minute amount of herb/flower or mineral they are originally made from. So it is important NOT to touch them before use. Some have twist lids that the meds fall in. Others are in a tiny bottle. I use the soft pellet form and lay it on wax paper to cut.
Highlands company makes their pellet soft. Boiron is a hard pellet. And Washinton Homeopathic Products makes a soft pellet. I have used both Arnica and Hypericum on a chin that had surgery for teeth spur removal. I have also used Hypericum on another chin with a foot crack.
Wishing you the best for the little one. Keep us updated.