Vaseline is good too but will not creep deeply under the scales and is quite sticky whereas Ballistol Animal Spray will creep into every crevice and is non sticky. Here is the link to the website:
https://ballistol.de/shop/en/products/animals/
I use this one in a spray bottle: https://ballistol.de/shop/en/products/animals/ballistol-animal/3/ballistol-animal?c=188
"Product Information
BALLISTOL Animal (Care oil for animals)
BALLISTOL Animal consists of tried and tested natural ingredients and medically pure white oil. BALLISTOL Animal is ideally suited to treating sores and as a universal care oil due to its composition and responsible production.
BALLISTOL Animal has been tried and tested for over 50 years and is well tolerated. It acts as a disinfectant and is completely harmless if accidentally swallowed by the animal (e.g. whilst licking its coat)."
