Toddler with purple circles under & around eyes

Hi I have a 2.5 year old boy who has purple circles under and around his eyes. He sleeps 2-3 hours during the day, and 8-11 hours at night with little interuption. His diet is prodominantly organic and biodynamic and free from preservatives. He does eat preservative free bread, although not much, and drinks about 1/2 a litre of unhomogenised biodynamic milk each day. He is exceptionally active, and does everything at double-speed. When sick it is mostly ENT (Ears, nose and throat, and is prone to infection from swimming pools. He is otherwise above average height, average weight, and very happy. He is prone to some tantrums, but no more than you would expect from a two year old. When sick he is treated mostly with homeopathics and natural medicine. The purple circles are becoming more and more prominant with age, as is his hyperactivity. He is very loving and enjoys cuddles, but also thrives on his independence. He is a Cancerian if anyone believes that this may have bearing on his condition. He has no diagnosed medical conditions, and is vaccinated homepathically and not viz the traditional needle method. He also has suffered with rashes around the mouth and "flashing" up the R/H cheek; this is DEFINATELY food related, but we cannot pin-point which foods. The rash and flashing seem to be occuring less frequently, but were quite severe up until the last two months. We live in Melbourne Australia with a fairly temperate climate, no excessive heat or cold. Anyone's help and suggestions will be warmly welcomed.