Thank you for responding. In an effort to see if he is allergic to foodd/other environmental factors, we have done the following:
1. I had my carpet steam cleaned.
2. I bought the Sharper image Ionic Breeze GP Silent Air Purifier with Ultraviolet Germicidal Protection.
3. We switched day care providers
5. We moved away from dairy products to soy based products for 14 days
6. We stopped sending him to the daycare for 14days.

Eshaan's most commonly consumed foods include
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Breakfast
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Gerber Oatmeal ceral with Cow's milk
Bagel and cheese

Lunch/Dinner
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Bean Burritto with a side of veggies (peas, beans, carrot)
Grilled cheese sandwich
Veggie burger
Rice pilaf
Macarroni and cheese
Pasta with veggies in Pasta sauce
Fried rice
Chow Mein with Tofu

Snacks/Juices
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Banana
Grapes
Apples
Watermelon
Carrot juice
Apple juice
Doritos Nacho flavored chips
Milk
Plain Yogurt
Tomato soup

I know I have listed quite a few many foods. Eshaan also had skin tests (apparently these are not too reliable) to see if he was allergic to dairy products but the results were negative.

I could go see someone in person but would also like to get opinions from this site. BTW we live in San Jose, California USA. Please do let me know of good Homeopaths in the area.

Thank you,
Kinny