if I had tons of paint ...I wouldn't paint adenium pots ...because it would defeat the purpose of the properties of terra-cota pots ...... painting would "seal" the surface, so no moisture could escape ...
and ya really want moisture to escape ....
adenium do not like wet feet ...and may die because of it ....you want super fast draining soils
adenium is one of those plants that have 2 seasons ...wet & dry .... the summer months are the "wet" season and the winter months are the "dry" season .....
in short, in the summer months you want to water like a tropical plant (alot of water) and in the winter months water like a cactus (barely any water)
yeah I know southern weather .... hot & humid right now ...rain predicted everyday this week ...90's this weekend ...with maybe a sea-breeze
no you do not want to pot up your plant just yet ...wait a few days - let those cuts harden over ...it is important that the new cuts do not contact wet potting media .... that will make your problem worse if not out-right kill the plant - the plant as is, can survive awhile by taking resources it needs out of its caudex ....
in the meantime ....mix up your potting media in a tub or something ....get it nice and gritty or super chunky