Pls help : Child with Food Allergies, Asthma and Eczema

My son is now 2.5 years old. He has been suffering from Asthma, itchy Eczema and allergy to various foods. Please let me know the medication / care I should be taking. The details for his ailments are as mentioned below :

1.Eczema/Atopic Dermetitis :
He had very dry skin from his birth onwards. His skin used to look scaly if not moisturised fully. I have been applying Eucerin Cream earlier amd now Cetaphil cream. From the age of 5 months, he developed very itchy rash on his cheeks, the area where ear lobes are joining face, little bit of lower back and a lot of outer calves' area of lower legs. The calves had hard, patchy, itchy and oozing(clear liquid) skin. I was asked to apply Hydrocortizone 1% followed by 2.5%, if no improvement by his pediatrician, wherever the rashes were. I didnot want to apply hydrocortizone, but when it started oozing colorless fluid and became very itchy, I had to apply it may be two three applications to cut the cycle. But I avoided it as much as possible. his scalp skin was very dry. Again, the pediatrician asked me to use Head & Shoulders. I used it minimally and tried to get him ok with Olive Oil. He did better with Olive Oil. I had to apply little hydrocortizone on the cuts at his ear lobes, otherwise he used to pull & scratch them through the day & night and the skin there got cut and startted bleeding. At about 1 year of age, his eczema from calf and cheeks had more or less gone. He now had the cuts on ear lobes left and in addition eczema on inner elbows and behind knees. This too has now gone. At present he has small comparatively less itchy rashes here & there on his legs outer calves and the cuts where ears join face.

He could also be possibly allergic to some pollen - not sure. He had once developed allergy around eyes after playing outside in the month of May which was ok only after putting eye drops for 15 days.

2. Food Allergies :
He was only on mother's milk for the first five months. Thereafter wheat, rice cereal were introduced. He developed more rashes on cheeks & calves each time I gave him wheat. He used to be very uncomfortable. I stopped giving him anything other than rice, moong dal. He seemied to be developing rashes if I had food, egg, chocolate,etc. so I cut down my own wheat, dal, egg, milk, chocolates etc while I was feeding him. He seemed to be doing better with me off all these possibly allergic foods. I was feeding him for a year. In his blood test for allergies at one year of age, he was foung to be allergic to the protiens (IGe related) of Egg-white, Milk, Wheat, Soyabeans, Dust Mites, Dust. In addition I found him allergic to strawberries, all kinds of beans, masoor dal, chana dal, peas. I have not tried any food colors as yet. On his visit to allergist at 2.3 years of age, he was found allergic to Dust, dust mite, Egg yolk amd Milk. His allergies were present but to a very less extent to wheat, soya as compared to the earlier test at age 1.
His reaction to the foods he is allergic to is vomiting two three times, swelling of face and lips, red eyes, nonstop crying. Once on exposure to sea food smoke(possibly), he has had an immediate wheezing.

3. Asthma : He had his first asthma attack by way of wheezing and refusal to eat/drink anything at 8 moths of age. This was after 3 days of viral infection of cold & cough. He had to be nebulised by Xopenex two doses. The next time he had an attack in winters, we were told to give oral steroid. When things were just getting out of hand I had to give him two doses of the week long prescribed doses. Since I didin't want any inhaled steroid, he was put on Cromolyn Sodium - a meta blocker as a preventive medicine twice a day. After approval from thedoctor, I have been trying to manage with one of the two prescribed dosages at night. Each time he gets a cold & cough, he starts wheezing with excessive mucus colloction by the second/third day. He is well with two doses of nebulising with Xopenex Inhalation Sloution(levalbuterol HCl). At times after excessive activity he starts coughing and sometimes even wheezing but is better after complete rest. On two instances, he has been coughing without runny nose and is unable to even eat food, if not nebulised once.

Whenever, he is eating food, if the food irritates him even a little bit, he starts sneezing with mucus. Many a times he has even vomited out all his food if he feels there is something wrong(as in he might be allergic to it) for him in that food. He often wakes up coughing in the first part of the night. He will then cough a lot be crying non stop with his eyes closed, wants to be held and comforted. When we distract him, take him outside/put the t.v. on, he will wake up, open his eyes, relax and stop crying.

He usually coughs at the first sip of water but therafter drinks half a glass of water with ease.

He is a very sharp & bright boy. But he is a little stubborn and naughty. If we get angry with him or scold him for being naughty, he gets so upset that he will start crying and after some time, may even start wheezing. He is very simple to deal with, if we give him reason why he should do this/not do something.
Other than the morning time, any other time of the day he sleeps, he wakes up crying with or without very little mucus and he needs to be immediately held and attended to. Manya times he sneezes so badly that he even gets hurt on the tongue.

Family history : My husband had skin allergy to dust when he was young.At present he doesnot have that allergy but he has Diabetes. My mother in law has asthma, diabetes and high blood pressure. My brother in law was allergic to milk when he was young, but I am not sure if it was the milk protein he was allergic to or was it lactose allergy. He too has asthma and High bllod pressure.

Medications :

Allopathic :
Preventive medicine : Cromolyn Sodium Inhalation Solution - being given once before sleeping. I believ we are able to prevent him from reaching the stage of steroid with this. one/two doses of Xopenex are sufficient to stop his wheezing.
In wheezing : Xopenex Inhalation Solution(levabuterol HCl).In addition, told to keep Epipen(Epiphrine with us).

Homeopathic : On our visit to a homeopath, we were told that the doctor did not believe that a child can have asthma at such a young age as 8 months and that the lungs will mature with time. The doctor recommended the following medications :
Preventive medicines : 1. To improve immunity : Tuberculinum 200 2-3 drops in a spoon of water in moring every alternate day
2. Bio Combination 6 - 4 tablets 3 times a day.
For Acute Stage :
1. ANTIM TART 30 - 2-3 spoons ina spoon of water three times a day
2. Grindilia Q - 10 drops 3-5 times a day.

I am at present giving him the allopathic & homeopathic preventive medicines.

Your advice is highly appreciated.

Thank you.