Choose the correct words.

Doctor: Hello, Mr Hall. Come in and take a ... .
Patient: OK. Thank you.
Doctor: Now, what ... to be the problem?
Patient: Well, it’s my ... . I got a mosquito ... a few days ago and now it’s really ... , itchy and painful.
Doctor: OK. Let's take a look. Hmm … yes, it’s very red. I’m afraid it’s ... .
Patient: Oh no! What should I do?
Doctor: You should put some ... cream on it three times a day. I’ll write you a ... .
Patient: Thank you. Should I come back and see you ... ?
Doctor: Only if it gets ... .
Patient: OK. Thanks again.
Doctor: You're welcome.