If the swelling has subsided from the initial injections, further injections can be done. Final results take 4-6 months to appreciate. Its been my experience that the long term results are somewhat less than the initial results.
Yes, placing fillers in the chin to correct a recessed chin can eliminate the chin cleft. The cleft is caused by the anatomy of your bony chin or more likely in you case, by the attachment of the skin to the underlying dermis. Placing filler in this plane may eliminate the cleft. Using a...