There are no major complications or risks in SMP because it is a non-surgical procedure. Though, it is better to consult a doctor before going for the procedure. Otherwise, there might be some redness in the SMP area. Patients with allergy issues might face some allergic reactions because of the pigment. If unskilled physicians do this without proper sterilization, it can cause infection. Also, these are a few reasons you should choose the best clinic.