Is Tingling Normal Long After CO2 Fractional Treatment?

I had my 2nd Matrix CO2 Fractional procedure on February 27th. Just like the first one, I am experiencing skin tingling. It seems to be more-or-less under the skin than on the surface, and my face often becomes flushed. After the first procedure in November, I experienced the same sensation until my 2nd procedure in February. I would like to know if these side effects/symptoms are normal and possibly find out what is causing them to last for so long. Thank you. :)

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