Brief Answer:
Don't worry

Detailed Answer:
Hi and thanks for your query.

Don't worry because benign keratosis, as it name is good diagnose.
If a doctor have removed it,this is the best method of treatment.
After removing, benign keratosis of skin doesn't reapeted.
There isn't any measure yiu can take to prevent grow up of these lesions.

All the best

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Brief Answer:
There are several method of treatmnet

Detailed Answer:
Hi again and thanks for trusting to us.

A variety of techniques may be used to treat benign keratoses.
They include
1.cryotherapy with carbon dioxide (dry ice) or liquid nitrogen,
2.electrodesiccation,
3.electrodesiccation and curettage,
4.curettage alone,
5. shave biopsy or excision using a scalpel,
6.or a laser or dermabrasion surgery.
Some of these techniques destroy the lesion without providing a specimen for histopathologic diagnosis.
But while you have done biopsy ,there is not need for another biopsy.

You can try and with Topical treatment with tazarotene cream 0.1% applied twice daily for 16 weeks caused clinical improvement in seborrheic keratoses in 7 of 15 patients,while you have on face ,but always after you have contacted with a dermatologist.

All the best

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