Hi~ Forgive me as this is more of a personal use question...I purchased a HFM last summer at a skin care show. I was wondering how often I should use it on myself? Is it safe for everyday use? I bought a personal hand held unit (no box.) I usually use it at a high level after my cleansing and before my toner/moisturizer. What do you suggest as a way to implement the HFM into my daily routine, as I am unsure I am using it correctly. I have acne issues and combination skin. Once again this is for home use, not on clients. Thanks in advance for your responses!