<s>[INST] Hi, i have been suffering a severe allergic reaction to a mystery source for the last 3 days. I have a very itchy rash thats been spreading and appearing on and off in different places. This morning i woke to find that my lips and hands had swelled right up. Im a bit concerned that this could turn into anaphylaxis? and what can i do to treat the symptoms? thank you [/INST] Hello. Thank you for asking at Chat Doctor. I went through your history and understand your concern. I would like to make following suggestions to you in reply to your queries:1. As your symptoms are for last 3 days, I would first think of allergy and infections (viral or parasitic) as causes. I treat my such patients with antihistamine like cetirizine/HY Chat Doctor. I also prescribe course of antiparasitic  </s>