Does sertraline(zoloft) caused finger tremors get cured on their own? how long it takes to get better and completely cured?

Hard to guess: One can ask his prescribing doctor about the finger tremors. One article said in a group of 21 patients on an SSRI antidepressant, half of them stopped having tremor by 1 month after stopping the drug, but half of them still had tremor at least 15 months after stopping the drug. However, 21 patients is too small of a group to predict from. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5712675/