Hi ,
Thank you for your query.
It seems that your child is allergic to tixylix syrup.
Omnacortil is
prednisolone which is an oral
steroids.
This medicine will decrese the allegy fast and effectively because
drug allergy can be life threatening.
Don't worry short course dose of steroids do not cause any harm.
Consult your doctor if the problem persists.
If you have any further queries you are free to consult me.
Hope this answers your query.
Wishing a speedy recovery.
Have a nice day.