TEA TREE OIL Side Effects & Safety. Tea tree oil is POSSIBLY SAFE for most people when put on the skin, but it can cause skin irritation and swelling. In people with acne, it can sometimes cause skin dryness, itching, stinging, burning, and redness.
Baby acne is a very common skin rash which usually develops in the first few weeks after birth. It is more common in boy babies than girl babies. This rash confuses many parents who assume (and not unreasonably) that acne is something which affects adults, especially teenagers.
Common Rashes in Newborns. Pink pimples ('neonatal acne') are sometimes thought to be caused by exposure in the womb to maternal hormones. No treatment is needed, just time. They can last for weeks or even months on a baby's skin.