hi
  You seem to have developed a flare up of  post partum 
acne.
  Postpartum or postnatal acne is quite common due to 
hormonal fluctuation.
Postpartum or postnatal acne is quite common due to hormonal fluctuation. Sebaceous glands produce sebum for lubrication of hair follicles and works as antibacterial agent, but they are susceptible to fluctuating hormones and triggered to produce excessive sebum. The uncontrolled production of sebum leads to acne small bumps that form into 
pimples, papules and pustules.
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 ,although there are various topical and systemic agents available for 
treatment of acne,,we have to be very cautious during 
pregnancy and lactation
I would advise you to use 
Clindamycin gel in the morning over the affected areas along with 
benzoyl peroxide gel at night
Hope it helps
Dr Geetika Paul