What the plastic surgeon procedure to postinflammatory hyperpgimentation? is there any risk?

Peels and laser: Post inflammatory hyperpigmentation can be treated by various chemical peels and lasers aimed at reducing the discoloration. The best prevention is to avoid sun exposure when dealing with a new incision or scarring of any type (acne, etc). The risks of peels and lasers are minimal if provided by a knowledgeable practioneer.

Peels and lasers: Post inflammatory hyperpigmentation is discoloration occurring after some type of irritation to the skin. The best way to avoid this is to reduce sun exposure after any trauma to the skin (incisions, acne, etc). Treatment with chemical peels, bleaching creams and lasers can be effective in reducing the discoloration. The risks are minimal when performed by a knowledgeable practioner.

Yes, recurrence: As its name suggests this is a response to prolonged inflammation and more likely to occur in darker complected individuals. Anything that aggravates or causes inflammation ( foreign bodies, delayed healing, sun exposure, tobacco use, irritation, infection, etc) are likely to worsen the hyperpigmentation. Similarly interventions which reduce inflammation and speed healing minimize pigmentation.