Aww mama, skin allergies sa babies can be tricky kasi maraming possible causes, pwede ding diaper rash, heat rash, or reaction sa fabric detergent, products, or food pa lang. Kaya best talaga na i-check with your pedia para ma-identify kung ano exactly ang cause, kasi ang treatment really depends on that, may mga cases na hydrocortisone cream lang, may cases na kailangan ng prescription, so dapat sure ka muna. In the meantime, try switching to mild, fragrance-free baby products and hypoallergenic fabrics if you haven't yet. Hopefully your doctor can help figure it out agad! Kapit lang mama, yan ang frustrating part ng parenting sometimes talaga.