### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Allergic reaction with unknown cause. Swollen lips. Swollen feet. Tingling/numbness in mouth. Have been on bactrim antibiotics for other issue. Have not been exposed to anything out of the ordinary that I am aware of. Red dots all over body. Dots do not itch. Took Benadryl and saw improvements until medicine wore off. What do I need to do? Is there another non-prescription med available?

### output:

Hello and welcome to Chat Doctor. Thank you for your query. The first question I would like to ask you is whether you were on Bactrim previously? Or is this the first time you have taken Bactrim? Also, if this is the first time, did the assumed allergic reaction occur immediately after the first dose or after a few doses, and which dose caused this? Which infection have you been diagnosed to have? The reason why I ask these questions is because, the rash could very well be related to the infection that you are currently being treated for. This will have to be ascertained by your treating doctor, so please do consult him/her for the same. The next thing is, if this is indeed an allergic reaction to Bactrim, you will have to immediately discontinue this medication. For this as well, you will have to report to your doctor, who will confirm the cause, discontinue the current medication and initiate a substitute. In the meantime, avoid any irritation to the area of the rash, wear comfortable clothing, avoid scratching the region, and avoid application of any prescribed medication on the region of the rash.Also, please Chat Doctor.  I am unsure about your infection or other medications, so I cannot comment on other effects you have been suffering. The best thing right now would be to visit your treating doctor. I hope I have succeeded in providing the information you were looking for. Please feel free to write back to me for any further clarifications. I would gladly help you. Best wishes.