Ay, those early rashes can be so scary, no? At 2 weeks, baby rashes are usually just normal newborn skin adjusting pa lang, heat rash, baby acne, or even just irritation from clothes/detergent, pero since andito na siya at maraming areas, better to check with your pediatrician para ma-rule out kung hindi lang yun harmless newborn stuff, okay? Para sa diaper area talaga or skin fold rashes, pediatrician usually recommends plain zinc oxide or specific baby rash creams, but I wouldn't put anything on chest/arms without asking the doc first, lalo na ganyan kalaki ang area. Hoping it's nothing serious, but peace of mind is worth the clinic visit!
Yohann Perez