A small cyst (under 1cm) was removed from my forehead about 4 months ago. Unfortunately, after initially appearing like the results were good, after about 2 months, the scar sank and now looks deep and indented. What procedures can improve this? Is there any chance of improvement naturally, in which case should I wait 6 months to a year before having anything done? The centrality of the indent on my face is impacting my self esteem as much as the original cyst.