Hello ,my Name Is Shameka And I Have A Question

Hello ,my name is Shameka and I have a question about my grandmother, her feel swell very badly looking like they may bust and they have a bad ache to it. When she goes to the emergency room they usually give her steroids and that's really just a quick fix to me because she cant have much in her system before her skin breaks out. I want help she stay up all day and night in pain barely can walk what could this be I want help for my grandmother!!