If I could give Dr. Cheng 6 stars, I would. I’m 35 and had sporadic cystic acne that flared up about a year ago. I had a few cysts that would just not go away for as long as eight months at a time. Saw another highly recommended derm in town, and he seemed more intent on having me come back for regular $60 appointments and pushing oral drugs. I was terrified of oral meds as side effects can be systemic, pushed back strongly against oral meds, but relented once when I had a cyst the size of a dime. Wouldn’t you know it, within three weeks of starting Bactrim, all my joints started to ache, which is a known side effect of sulfa drugs. When I mentioned this, he brushed it off, told me to finish the 4-week course, and to stay on it for 6 more weeks. A week later, I tore a structure in my knee that required surgery. Had never had joint pain before in my life, and all of a sudden even the other knee was creaky going up stairs. My hips and ankles hurt. My shoulder joints hurt. I felt like I aged 40 years in a month. I quit the drugs instantly once my orthopedic surgeon and his PA agreed that, while it couldn’t be proven this was tied to the drug, they both strongly suspected that the inflammation caused structures inside the joints to become prone to injury. Dr. Cheng to the rescue. Not one to be content with the current Rx market offerings, she ordered a custom topical formulation for me from a local compounding pharmacy. Wow, and I thought I’d exhausted all solutions on the market! After one Photodynamic Therapy treatment and with continued use of her formulation in conjunction with the recommended Clarisonic brush (which the other derm had shot down for me), my persistent cysts cleared, and my skin tone is now freakishly even over four months later. It looks like it glows from within, and people comment on it. I don’t even have any faint red marks or any sign that I previously had acne. Even better, she didn’t charge me for the follow-up visit and seems truly more interested in having her clients heal than to keep them coming back forever. She really listens. I’ve since moved out of town. Will really miss her services and felt the need to review since people keep telling me how great my skin is!