Breastfeeding for babies is not only food but also a pleasure: warm hugs from mum, her smell and her voice gratify him, making him feel safe and protected. And that's also why he is reluctant to give up his mother's breast to be bottle fed instead.  
As such, while you are trying to bottle feed him, make a fuss of him, hug him, speak to him gently as you would during breast feeding, perhaps including skin contact. Use a lot of gentleness to get baby to accept this necessary change. Be choosy with the shape of the nipple and check the flow which might be too fast or too slow and therefore hard work for baby.
Best wishes.

Dear Madam,
You child's problem is quite frequent, especially in the nappy area, because a baby's skin is particularly sensitive to external agents.
To reduce the possibility of these phenomena from occurring, it is a good idea to follow certain general rules during nappy changing:
1. Change your baby frequently so that his/her bottom is always dry and clean.
2. Wash baby's skin with lukewarm water and soap after every nappy change.
3. When cleansing your baby, reduce the use of sponges as they may harbour bacteria and dirt.
4. Dry the baby's bottom thoroughly and gently, patting every fold of skin and without rubbing.
5. After cleansing and drying, apply a layer of zinc oxide-based protective and rehydrating ointment to insulate the skin from contact with irritants.
But if your baby's skin has become so irritated that he or she has sores, we recommend consulting with your paediatrician, who will be able to make an accurate diagnosis and recommend the best ointment to help with healing.
Sincerely.

Dear Mum, before I give you some practical suggestions, I would ask you to try to understand why your child doesn't want to fall asleep: perhaps he doesn't want to be away from you and from the fun activities that you do together because he doesn't see you much during the day, or he may perceive sleep as something strange, outside of his conscious control or … it might even be an attempt to stay up until you too go to sleep. Try to respond and in the meantime here are some tips to overcome his "resistance to sleep".
The first tip was inspired by your words: you don't need to "tire out" children in the evening because the more tired they are, the more irritable they are, they make an unnecessary fuss and don't want to go to sleep. Create a repetitive routine that accompanies the child each evening heading towards bedtime, doing everything calmly and without stress (for example, having a bath, brushing teeth, reading a story, talking about the day….) perhaps with some small variations: one evening you tell a fairy story, the next day it's Dad...
Before bedtime avoid games or activities that can create excitement and use gentle and repetitive music. Once put to bed, the child must stay there, and if he is afraid of falling asleep, stay nearby and reassure him. A soft doll might be useful (the transitional object) that can comfort him and help him with his separation. After the last goodnight kiss and before leaving him alone in his bedroom, always ask him if needs anything else.
During the day don't darken the room where he has his nap, while in the evening, have a dark room and turn on a soft light to differentiate day from night. Don't let him nap after 16.30/17.00 because this could interfere with his night sleep. Rest well….
Best regards.

Hello,
Toothpaste can be used straight from the first signs of milk teeth: its pleasant taste, for example, of fruit and with xylitol can make teeth-cleaning a pleasant experience. 
Up to 3 years of age, however, it is important to choose a specific fluorine-free product because, in consultation with the paediatrician and dentist, it is already being administered orally in the form of drops or tablets. A fluoride toothpaste could, inadvertently, be swallowed by the child, with the consequent risk of overdose.
After the age of 3 years, toothpaste is essential and must contain a low concentration of fluorine (500 ppm).  
Remember always supervise oral hygiene times, at least until your child is fully independent.
Best regards.

Dear Madam, normally, exposure for brief periods and at a reasonable distance is in no way harmful or dangerous.
However, to date, there have been no studies that evidence that exposure at close distances and for extended periods is actually harmless.
I would also like to stress the educational aspect as well as proper stimulation: our children develop properly if suitably stimulated by an adult that plays and interacts with them and not by the excessive passive exposure to televisions or computers.
Consultation with your paediatrician will in any case provide you with more adequate responses to your queries.
Best wishes.