Hi mam,
It looks like a infection of hair follicles.
It is not a serious condition. It will subside within few days. If it persists , take internal Medicines by consultation with any qualified Homeopathic Doctor.
Next Steps
Please provide more details for further evaluation.
For consultation with me, you can schedule your appointment through practo app.
Health Tips
Maintain personal hygiene.
You can use Homeopathic wash ( like SBL Clean feel ).