I had the procedure done last friday, dermapen, for mild acne scarring. its been 48 hours, the estethician who did it to me told me not to use sunscreen for 4 days because of the chemicals that it has and that my skin is opened and dilated. However i think shes exagaggerating a bit and that by now i should be ready to use it ? zinc oxide sunscreen for now im only using moisturizing cream. thankks