<qa>  What is the maximum amount of clinic visits?Clinic visits will occur on a daily basis until the investigator determines that the primary lesion complex has healed or a maximum of 15 clinic visits. At daily clinic visits, the investigator will make efficacy assessments of the primary lesion complex; safety and tolerability assessments of NB-001 following topical administration will also be assessed daily. Subjects will make daily assessments of therapy. 