Greetings. The cost depends on the type of peel used by the doctor. So that can best be told to you by the centre where you plan to get treated. But yes, its a good form of treatment for the pigmentation and lesions that you have and its a relatively safe form of treatment - provided you get it done by a qualified dermatologist . It will help your condition , but if it will be a permanent cure - depends if you keep having recurrences and how that is tackled.
Next Steps
follow up with your dermatologist
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further queries may be sent on follow up messaging