Can HYALO GYN be used from time to time (not as recommended)? If the doctor did not say how to use the product after a full month of treatment, how often should I use HYALO GYN Vaginal Hydrating Gel??

You should use the product per the indicated instructions included in the product labeling. The product is indicated for use every three days, the efficacy of the product is unknown with a decreased dosing regimen. IF the product was recommended by a physician you should also inform the doctor of changes to the dosing regimen. The doctor would determine if a change is dosing is required.