Reading aayatul kursi and blowing on family members who are living far away

Q: I have the habit of reciting aayat ul kursi (once) followed by the last three surahs 3 times each and then doing a dum on myself and my family members who are living in other places and countries by imagining their faces one by one and doing dum in the approximate direction. 

I would generally do that amal at any time of the day with the intention of safety and well-being of myself and the loved ones. I would like to know: 

1. Is such practice permissible and supported by some evidence? 

2. Is there any added significance and benefit of continuing this practice compared to normal masnoon prayers for self and family members? 

3. Or whether it's an innovation and should be avoided?

Serving one's parents while listening to their hurtful comments

Q: I left my home due to toxic and unjust family matters that were affecting me and my wife emotionally and mentally. I rented a home not too near not too far from my parents, and everyday I go to my parents house to do any work they want, as my father is a paralysis patient. Everyday I give him a massage and bath him and simultaneously listen to hurtful comments and smile and not reply so the atmosphere don't get more tense. Am I doing right or wrong and will any curse of my parents for me to Allah affect me?

Bacteria used in a probiotic

Q: The question is related to the bacteria used in a probiotic. 

Many years ago, a one time collection using an oral swab - like how a covid test is done - was obtained from a living infant. The bacteria was then isolated, identified, purified and mass produced after this single collection. 

The bacteria in this specific probiotic do not contain any human material or DNA. Bacteria don't come from humans. It is a separate entity so to speak. They are not part of the human body. 

Is it permissible to consume this medication?

Working in a grocery store that sells haraam meat and alcohol

Q: Is it permissible for me to work in a grocery store? I will need to stock up shelves with pig and haraam meat and also halaal products such as bread, fruit and clothes. I will need to stand at the till and scan the goods for the customers (cashier). It is approximately 90% halaal goods, but goods such as cigarettes, haraam meat and alcohol are also sold. Can I work in this place?