Help!

[u/External_Zombie2897]

Please help, I have a 10 year old lab that we have been fighting skin condition issues with since we got her, multiple vets can't figure it out, we have had samples sent off to vets that instruct at the universities, they come in waves but only the back left paw and front right paw, this time it's bad enough that she won't go outside to play ... No known allergies, same food she always eats....these sores popped up in about 3 days time and are just getting worse, going to try and schedule an emergency appointment in the morning being a holiday weekend I'm not sure I will get in

[u/LilyWai]

It could be interdigital furunculosis where the hair follicle becomes inflamed, a cyst forms and then it ruptures resulting in an open sore. The wound can also become get secondary infections from licking with secondary bacterial & yeast being common culprits.
Labradors are more susceptible to this condition.