hi 
You seem to have developed 
cystic acne... 
Before coming to the exact treatment, i would like you to follow certain precautions: 
1. Avoid using any oily creams or lotions over face as much as possible. you can however use oil free moisturisers 
2. Wash your face frequently inorder to keep it dry 
3. Drink plenty of water 
4. Try to avoid eating dry fruits 
5.Avoid touching or squeezing of pimples 
6. Avoid Hair oil 
7. Always use a sunscreen (SPF> 26) when going out in the sun 
Now as far as your condition is concerned, i would advise you might need to apply some antiacne medications like Clindamycin gel over the affected area.
You might need a systemic agent also to control acne ,so if the above medicines dont help you much, then see a 
dermatologist for the same.
For acne cysts also , there are various treatment options available like intralesional 
steroids,cryotherapy etc which your dermatologist can decide upon 
Hope it helps 
Dr Geetika Paul