My 5 year old keeps getting spots (folliculitis?). she also gets frequent colds. she is very pale with dark circles under her eyes. could it be anemia

"anemia" is not a di: "Anemia" is not a diagnosis any more than fever is. The problems are common and trivial, not a sign of significant trouble. Review in detail with the pediatrician.

Could be: But anemia wouldn't cause the frequent colds or the dark circles under her eyes, ? Allergies or chronic inflammation in her upper airways causing nasal congestion and probably sinusitis. Ask her doctor/pediatrician to look at her, anemia is rather a lab diagnosis, blood count would tell us if she's anemic, more history and physical exam, probably CT of her sinuses would tell us more, good luck

Needs labs: As both, a mother and a Doctor, I recommend you to take him to the Pediatrician for an overall check. He needs to have at least a complete blood work including not just for anaemia (red cells that carry iron ) but for white cells ( part of the immune system of defense). They'll check the liver, spleen, lungs, throat, ears, and heart, Tec. Nobody could diagnose without labs ,but please do so.