Hi Shweta, Welcome to HealthcareMagic Forum.
I would like to let you know that it is common at this age. Kindly do not worry as it could also happen due to Hormonal
Imbalance. It is not related to any season. You may want to drink plenty of water and avoid stress
. You should be getting yourself examined by a Dermatologist
so that he can examine you thoroughly and Prescribe medications if necessary. Exercise regularly and eat healthy nutritious balanced diet like Fresh fruits and Green Leafy Vegetables.
Wish you Good Health, Take Care.