And if i recall correctly Licking DO have a certain degree of healing properties between yukkuris (and depending of the story between yukkuri and humans as well) Sadly, they mistake the act of lick lick as a universal solution to "heal" anything, reason why they'll lick lick damaged accesories or nearly dead yukkuris in a futile attemp of heal them.
Yeah usually Burns are beyond the capacity of Lick Lick's healing factor, and if i recall correctly, that's when sweet liquids play a role, those and big ass wounds with huge leaks, at least in anything but foots, for some reason, i had never seen a burnt foot healed....maybe because the liquid was never directly applied to them, but maybe there is also a limit to healing with sweet liquids besides "already goner" status?
Don't forget that yukkuris with burnt feet in most (if not all) stories are either cameos (that factory field trip one comes to mind) or short-lived/nobody's interested in healing the damage (just about any abuse story).
There are a number of comics where orange juice/healing liquid is used to fully heal a yukkuri apart from the burnt parts; one example is post #14474. It seems to work well that burnt parts can't be healed; after all, they are 'destroyed', as opposed to lacerated or beaten.
If you want to take this into more scientific terms, we can look at "lick-lick" as melting down the flour based skin to spread it over the rest of the wound, sealing up the exposed bean paste like stretching your own skin over a cut (for lack of better analogy). Burning something carbonizes the flour into charcoal, which would not melt from yukkuri saliva and thus not heal.
Then you can look at the magical properties like ammo's little Reimu being healed after getting licked...
Well, regardless of whether they move by jumping or sliding, the "feet" area still has to make contact with the floor. I guess the pain is enough to make you stop from uselessly paining yourself. In other stories, it appears that they completely lose their mobility, making them stationary torture targets. In this case, we could say that while burning their feet, the "muscles"(?) involved in controlling its movements are destroyed, and while the skin can be recovered, the muscles are permanently destroyed, leaving them permanently scarred. In other areas such as skin, it could probably eventually either fall off, break off, or remove the burnt skin and apply orange juice at the affected area to immediately dissolve the skin to cover the burnt area and create a new layer in its place. This could also explain licking, as the saliva(?) would slightly dissolve the skin and heal light wounds. Going off topic, but the fact that they find the solution to every injury or loss by healing can be taken advantage of, as in show them desperately struggling to restore unrepairable objects(such as hats) of yukkuris.
It depends on the artist, but I believe not even orange juice can heal a burn. The only way to heal it is to replace the burned parts with a new dough.
Well, ther isn't really a case of somebody fixing burned foots, even if some used new dough, it was like when people use dough to seal their mouth and eyes, they seal it and stop working as such.
I think easyusername had a good approach about it, specailly by the fact of feets's "muscles" being ruined for good after being burn to that degree.
I always thought the entire dough part of a yukkuri were the muscle. I believe a real manjuu has no separate layer outside the dough? Not the poorly made ones, but real, proper ones.
The thing is that, usually hand made dough seems to lack any of the properties of the naturally born one, and i'm not sure that, like in some stories, the "harvested from other yukkuri's" dough would work too.
Usually using flour and patching yourself a yukkuri is considered a patchwork and mainly for the sake of sealing than to rehabilitate capacities, after all, how would putting dough on the lower part of a yukkuri suddenly generate a mamu_mamu, anyaru, etc. if it got ruined?
I supect that yukkuris probably wouldn't be capable or regenerating such parts or being healed no matter how "simplistic" their materials may be, because of those internal details.
Hmm, you're right. Yukkuris' eyes can't be regenerated except by transplanting from another yukkuri, for example. Whether replacing the burned foot with a new dough other than from another yukkuri works would be up to the artist and his/her intention with the yukkuri.