<s>[INST] my 2 yr old son has had a rash for 2 weeks tiny red spots with pin prick white head, now they are turning into large raised lumps and the pin prick is black. he has seen 3 doctors over the last 2 weeks they dont know what it is he also has a high temperature. [/INST] Hi, If I were your treating Doctor for this case of severe pain under the left rib cage, I would come up with three possibilities, these include: 1.The first possibility is of strepto- or staphylodermia. It looks mostly as bacterial infection.Try giving antibiotic -Amoxiclav 50mg/kg divided for 3 times for 7 days. Apply Chloramphenicol to affected area 2 times a day.2.At the second,I don't suppose it would be that molluscum virus? It's harmless if it is. You should apply also Betadine or iodine 3 times for 5 days. But in this case rash is not raised so much.3.It could be a post viral rash, or an allergic reaction to something, a contact dermatitis. You can discuss this with your  Dermatologist.Hope this answers your question. If you have additional questions or follow up questions then please do not hesitate in writing to us. I will be happy to answer your questions. Wishing you good health. </s>