Welcome to ATD. Thank you for the query.
Stop guaphensin administration now.
Give your child 5ml of diphenhydramine[benadryl] once now.
Give it for two more days after lunch.
If you feel your child is getting more side effects of guaphensin like hives,difficulty in breathing, kindly visit a paediatrician and get him treated appropriately.
Kindly consult further if you have any more queries.
Hope this helps. Take care.
These Q&A’s are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.