Hi, The raised eosinophil count appears to be related to an allergic response in your child. You may reduce exposure to dust as dust mites are on of the causes of allergies which aggravates this type of asthma. You may use a dust absorbing device on your room and frequently sun dry mattresses and linen along with vacuuming if you have carpets. If your child is allergic to pollen , or cat fur reducing exposure to them is helpful. Regarding diet a balanced diet with freshly prepared food containing fresh fruits and vegetables is beneficial. Certain ayurvedic supplementary Tonic like preparations such as Chyawanaprash are helpful to boost immunity. This preparation contains herbal components like gooseberry which are beneficial on a long term basis. Outdoor activities which encourage physical well-being are also helpful. Overall it s an all round approach that is managing the environment around to reduce allergies and boosting our own immunity. Probiotics are also helpful in building a good immune system. If your child is not allergic to yoghurt the natural way to get probiotics is a cup of fresh yoghurt everyday. You may also get further information regarding natural food recipes and ideas from websites such as WebMD, Merck Alternative medicine etc. Maintaining a food diary helps us in finding out what combination works best. Minimizing the consumption of foods containing additives and artificial colours, flavor enhancers is helpful. Should you require further information please post your queries here. Best regards.