Hi my sister is allergic to paracetamol tablets. When she takes paracetamol, she get swelling on her face and around eyes. She can't even open her eyes at that time. When she consulted the doctor, he said she allergic to nsaid content and avoid using that. My understanding is nsaid is used for pain relief and fever. So here my question, in life there will be many situations where we need to take pain killers, so is there any alternative tablets which she can take?