You can use spoo shampoo, It is tear free and very mild for babies hair.

Vitamin d means syrup?

That's normal... She will do it anyways.

Hi you should not give it regularly, it should be only when required in emergency

Well I suggest you to check your lo to a doctor

Hi apply rash free ointment on the rashes and keep the area diaper free for few hours in a day and keep the area dry and clean as possible

Hi get it examined by paediatrician for this

Hi is it dry?

If he sleeps at day time,you can cut ..
Even I too cut my son nails whenever he sleeps in the morning times...

Try mamaearth body lotion, it gives soft, smooth skin all day, locks moisture to skin for longer hour, safe for kids