Thanks for the query.
Yes it might be scabies
you, your wife and children all are suffering then it must be an infection.
The most probable being scabies,
Treatment is with permethrin
All of you must apply this.
Please meet a dermatologist
for exact diagnosis.
Let me know if you have any other doubt.
you can ask a direct question to me on this forum, following the below link.
Wishing you a good health.