My 5 month old baby girl woke up this morning with big red blotches and dots on her butt. She woke up super fussy this morning but has been normal all day. Her diaper was really full when she woke up. Could this just be a diaper rash or something more?
Hi... Thank you for consulting in Chat Doctor. It could be diaper rash or hand foot mouth disease or any other trivial viral exanthem. But, skin conditions are best diagnosed only after seeing directly. I suggest you to upload photographs of the same on this website, so that I can guide you scientifically. 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.