Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain there is a possibility that you were advised to take antibiotics and it has led to
allergic reaction leading to rashes on lips and genitals..
You are given
Allegra that contains active ingredient
Fexofenadine and it is a potent antihistamine or anti allergic medication..
It will help in reducing rashes and pain..
The medicine is safe and you can continue taking it for atleast 5 days for resolution of symptoms..
You can also do cool compresses to relieve inflammation and pain..
You can also take
Tylenol or
Ibuprofen for pain relief and reducing Inflammation in t only after consulting your doctor as you have not indicated the name of medicine that caused allergy..
In case if after 5 days also you do not find relief consult an Allergist and get evaluated and a thorough clinical evaluation can help in diagnosis and treatment can be advised accordingly..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.