Do I have nerve irritation from dermal filler? 3 weeks post-op.

3 weeks I had less then 0.5ml of soft filler injected into my nasiolabial folds with a needle. Afterwards I experienced funny sensations on my right fold: tingling, slight numbing feeling. It's been about 3 weeks later and the feeling is a little better however I am experiencing sporadic crawling, tingling around this area/cheek/lip/near nose going to bottom of eye. It is quite annoying and I feel like I need to scratch the skin often because it's itchy. What should I do & will it heal?