For my daughter, 26 months old, 29 lbs. A few months ago, she started getting bumps on her legs, approximately one each day for 7 days. They looked like mosquito bites at first, and then within 24 hours they became larger and very hard and red (about the size of a quarter). As they changed in size, the highest point on the bump became scaly/scabby although there is never a head. I thought she got one on the corner of her eye, but it also could have been a mosquito bite. I really can t tell a difference. I took her to her doctor and she was diagnosed with periorbital colitis and given an oral antibiotic, which was supposed to help with the other bumps as well. The other bumps were only on her legs. A few weeks have gone by and she hasn t had any bumps until yesterday, when 4 appeared. One of those is now about 3.5 inches in diameter. Other than this, she hasn t had any illnesses or injuries other than minor scrapes from playing outside.
Hi... Thank you for consulting in Chat Doctor. 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.