Hello..acne could be due to various reasons like dandruff, hormonal( which is common in females), stress, genetic/ hereditary, unhealthy food etc.
It's important to rulenout the cause and get it treated at the earliest. Moisturizers are available for different skin types.
Next Steps
please do consult online and get it treated
Health Tips
don't pick the acne since it can get worse. and don't try any home remedies