i went to the physio today about this same injury on my left hand, its been a dull ache for a few months now but doesnt hurt when i climb on it, dont even use tape. just after or if i catch a hold dodgy.
i have a pack of deep heat which im using to get the full flexability back in my finger as it hurts when i stretch it on odd directions. deep heat then slow stretches like open hand to clenched fist etc. the hot/cold method also works aswell but i only really feel it helps if i have done the injury recently, like if i have tweaked it more or caught it wrong.
this is my, recent problem which feels better already