Suggest Treatment For Redness And Itching At The Site Of Infection

Hi, I have got the MTx diagnosis done since yesterday and the results appear to me that I may have got the infection as there is reddness and itching feeling at the site of injection. I also want to know whether I can recover or not? My illness can take a toll on my married life as I am not sure that I could remain together with my husband or not? Is it better to stay away from him?