I am someone who developed atopic dermatitis from a vaccine (single measles) I had when I was a child, this was confirmed by doctors. I do have an egg allergy and I know the vaccine was made from egg protein so it was probably an allergy to the ingredients used to make the vaccine rather than the vaccine itself. Vaccines have also come a long way since I had this jab especially in regards to safety and using non-allergenic substances in production.
When it came to having the Covid vaccine and the MMR vaccine a few years ago (I never had it as a child because of the reaction to single measles but needed the rubella immunity later in life hence wanting the MMR), I did a thorough amount of research. I researched officially recognised side effects, I compared that to the side effects of actually contracting the virus itself, the ingredients and methods used to create the different brands of the vaccine, medical studies including the links between the MMR vaccine and atopic dermatitis which has been proven in medical studies. I did this thorough research that I put on a spreadsheet so I was informed as I could be before having them and could choose the safest brand.
For both I concluded that whilst the vaccine was not 100% safe by any means, it was far safer than actually contracting the virus itself unvaccinated. When I had the Covid jab for instance there were 1000 times more deaths from Covid than from the Covid vaccine. And Rubella was not something I wanted to risk as a woman of child bearing age.
I decided to have both jabs. Because of my history I had to stay for 20-30 minutes being watched straight after the jab. I was also allowed to choose the brand that I wanted for both types of jab that they ordered in for me especially. But for both I had absolutely no side effects whatsoever and I’m so glad I had them!
Yes vaccines are not totally safe and anyone that says so is very misinformed, but they are so so much safer than actually contracting the virus unvaccinated and that’s why we should have them and why we should vaccinate our children!
I do wish however that there would be a choice to take single vaccines rather than combined even if one had to pay for them because for me that would have been an even safer option.
I would recommend that your husband researches the vaccines including related medical studies of side effects and links between childhood vaccination and various chronic conditions and compare that with the side effects and chronic conditions that can arise from actually getting the virus itself without the antibodies already in the immune system. It will give him more confidence about the vaccines and the fact that they are the safer option compared to actually contracting the virus unvaccinated.