A salicylic acid face wash is generally one of the safer topical acne options while breastfeeding, since it's applied in low strength on the skin and barely gets absorbed into your bloodstream, unlike oral acne medicines which aren't safe right now.
Next Steps
Since your skin is sensitive, pick a gentle formula around 2 percent strength and patch test on your jaw first. A dermatologist can tailor an active acne plan that also suits breastfeeding.
Health Tips
Stop using it if you notice stinging, redness or more breakouts than before, and consult your dermatologist before adding anything stronger.