Hello.
Thank you for asking at HCM.
I went through your son's history.
Yes, you can give Allergex for his itching. In addition, I would also suggest him applying a lotion like
calamine over itchy areas. These will help.
If Allergex causes him side effects like sedation,
drowsiness, reduced concentration,
dry mouth, etc, then drugs like cetirizine (Zyrtec or Allecet suggested by your pharmacist) or
levocetirizine should be given, which cause less side effects.
Hope above answer will help you.
Wish your son the best of the health.
Should you have any further query, please feel free to ask at HCM.
Thank you & Regards.