Hello,
The causes and aggravating factor of trigger finger usually are
1)overuse syndrome
2)systemic reasons like increased
uric acid.
Please discuss with your physician for uric acid levels and if your Vit D3 levels are low,please get the supplements for the same.
Hydrate yourself well.
About the pain in the little finger and thumb,do hot and cold alternate fermentation(3:1 mins) and repeat it 5 times.
Apply some balm and can take some NSAID to help in pain relief.
There are simple exercises like slowly opening and closing the fingers,making a diamond with your hands,clenching both hands together can be done.
Next Steps
For better understanding of the exercises,please take an online consultation with a Physiothetapist
Health Tips
Without examination and only on reading the brief given,I think splint can be avoided.