I have a lot of patients with sensitive skin and they seemed to do well with resurfacing. Obviously, everybody is different and you would have to get a complete history and physical exam to make sure that you are okay to receive this particular treatment.
Here are some of the contraindications to having a resurfacing:
previous cancers or active skin cancers, on Accutane within the last 1-2 years, medications such as tetracycline, chloroquine, bleomycin, amiodorone, St. John’s wart, recent sun exposure within the last 4-8 weeks, recent skin procedure within the last 4-8 weeks, previous chemical peel or laser within the last 6 mos to a year, skin koebnerizing diseases, autoimmune diseases, hiv, active infections, herpes, lupus, hormonal/endocrine diseases, bleeding disorders, history of keloid and hypertrophic scar formation, pregnancy / nursing, porphyria, previous radiation to the face.
You can always start slow as well and do more superficial chemical peels first before progressing to more advanced and deeper peels.
In terms of whether they are permanent, this is a difficult question because permanent can mean forever and nothing lasts forever. Studies show that after a resurfacing, and this depends on how it is done and how aggressive, the results lasts around 8-10 years and then you will likely want to do this again.
Consulting a Board Certified Facial Plastic Surgeon would be something that I would recommend. We specialize in the face and are highly qualified to help you with this.