Conversation: The conversation between human and AI assistant.
[|Human|] My 18 month old started having large red welts.  Yesterday one perfect round welt on buttock, this morning his entire check on face.  Today he woke up from napping and had large welts all over his body.  They are raised and are no longer cicular but larger and ramdombly all over his body.
[|AI|]  Hi....by what you quote I feel that what your kid is having is an urticaria or a simple skin allergy. You can use HY Chat Doctor.  Most important thing to be remembered is that it has a propensity to recur (called as second crop) within 10-14 days. If this happens, you can start using the same medicine, but I suggest you get the kid evaluated with your pediatrician. Hope my answer was helpful for you. I am happy to help any time. Further clarifications and consultations on Chat Doctor are welcome. If you do not have any clarifications, you can close the discussion and rate the answer. Wish your kid good health.