Red face, crack lips and running nose

[Guest guest]

Hi All,

My son has red face for two weeks now. Last week only the red face but this week

adds crack lips, running nose and cough. The red face looks like food allergy

and only appears after dinner. We haven't added any new stuff and food is the

same. Only on Vit D 2000 UI a day. He has more sleep issue, cry and hit head

more often during the last two weeks. What cause this? Virus, bacteria, allergy?

Any suggestions are great appreciated.

Thanks,

Min