Thank you for your question. Microneedling treatments are recommended spaced one month apart (by the company). I would consider waiting one month between treatments to allow collagen to be created by your body. Please consult in person with your own aesthetic specialist to ask about their recommendations.
I recommend that microneedling sessions be done at least 4 weeks apart. Your skin will need time to heal and repair itself. Best results are seen with 3-6 treatments and can usually be done in less than an hour.