@RadishRose, those tea bombs look too pretty to use. They probably smell good too.
I used to get a Rosehip-Camomile blend loose tea labeled for colds at a herbal store a long time ago. We don't get over the area they are in hardly now. They mainly sold Frontier brand herbs & spices in bulk. It's a very reliable brand who has high standard for their product. Now I find Frontier products it at the health food store I go to that you buy by the ounce.
After trial & error, I figured out the measurements: 1 oz. loose camomile & 2 oz. dried seedless rose hips. Combine gently until evenly mixed & store in a glass jar with a tight lid out of the light. It makes a good size batch & will last for over a year or more. I still have from last year & it tastes the same.
I experimented with using 1 rose hip tea bag & 1 camomile tea bag, but the measurements wasn't right. This tea is full of vitamin C from the rose hips. My husband said if he drank it the evening, he felt better the next day when he woke up & his colds were gone faster.