My Father has COPD & Bronchitis. But from last month he has developed breathing problems & low blood oxygen level. He is using a oxygen concentrator during night but still has breathing problems when he is doing some activity like walking. Somebody suggested me to give my father IMC Himalayan Berry Juice & told me he will get rid of this problem within two months. I bought it with hope & my father has used it for 2 days. Should he continue to use it? Will it help?