I know how you feel. Nutramugin is horribly expensive. I had one lady in my child care center who was spending several hundreds of dollars per month on it after WIC too.
I think the woman was out of line. If the baby is having a health issue where they feel he is not doing well on the formula then they need to pick up the phone during the appointment and have a conversation with the doc, then the 2 of them make sure the options are what they should be. The doc will take the call since it is from an agency regarding a patient.
If he is not gaining weight he will have to do something else. I feel she would not have been this drastic if he was growing according to the acceptable guidelines. You need to have an open mind to accept it may be time to try other things. I would suggest you ask the doc about going to a specialist. Or call the insurance provider and get a recommendation of what kind of doc to make an appointment with. Perhaps an allergist or a gastro doc could really help. There are other options that might work out better. She should have still handled it differently, maybe by only giving you a one month voucher and telling you to have an appointment with the doc because she was really concerned. Then if the doc still agreed to come back to get the other 2.
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I get annoyed at people too who say rude things to people who use the state for assistance. Excuse me, I worked many many years as an adult and now I work 3 part time jobs and my husband draws SSDI. We still get WIC and get food from the monthly food bank. We have to, to be able to balance our finances and keep gasoline in the car, food on the table, and be able to have electricity, natural gas, and hot water.
I hope someday they are in need or have the opportunity to ask for help. It's not a hand out, it's a needed service that is part of the budget set up by the government.
One time in Relief Society on of the teachers who was talking about the church welfare program said she would rather go hungry than ask for help...how prideful. She didn't even think/or know maybe, that many of the sisters sitting in the meeting were having to use the food program or financial assistance the church provides due to massive layoffs and/or family illnesses going on at that time. I can't tell you how many of those women dropped out of the church over the next few months. Most of those women have never attended any other church. How sad one sisters opinion about taking hand outs influenced so many to turn away from church.