HEY i ave an 11 month old daughter who was recently prescribed PHENOXYMETHYLPENICILLIN as she had severe tonsilitis se now has a red rash all over her body which her doctor thinks is an allergic reaction but he wants he to see how her rash is tonight before saying for sure. my question is how long does this rash usually last for??
Welcome to the ChatDoctorThe rash is most likely due to penicillin allergic reaction. Don't worry. You may give her antihistamine such as Chlorpheniramine or fexofenadine along with lactocalamine for local application. Hopefully this will improve in 48 hours. Ensure that she is not given penicillin group of Chat Doctor. Take care