Diagnosis needed for symptoms!?

Ok, yes we have called a doc before anyone recommends that.
Crown on front tooth fitted on Wed. Fine on Thurs and Fri with pain in Mouth. Saturday very tired,seemed to be breathing quickly. Sunday (last night) hot and Cold and diorreah and Swelling of top lip. >

2 months ago
The swelling on his lip is now bigger, he is in a lot of pain and it looks like someone put a cotton wool tube under his lip!The NHS direct Nurse thinks the symptoms are for separate problems. He's only had 1 lot of diorreah so she said the doc Wouldn't see him anyway. His temp seems normal. She thinks the swollen lip isn't anything to do with the other symptoms but to get that seen by the dentist 1st thing tomorrow morning.Does anyone know what this swelling might be on his lip?
The swollen lip makes me think you have an abscess, but the rapid breathing makes me think you were allergic to something involved in the process... I'd have to see you to tell, So i am glad you have made the appointment already.

Home remedy for Allergic Reaction is to use OTC Benadryl at twice the label recommendation. I am not recommending this but merely telling you what has worked for others in the past.

Again and as always, please remember that I have not seen you or your X-Rays and I am just speculating so that you might have a better understanding of what questions to ask the person who is actually treating you.

Addition - after reading YOUR addition, it sounds more like an abscess than Allergy. It could be from the recently treated tooth or it could simply be a coincidence and coming from another tooth close by.

Diagnosis needed for symptoms!? Keyword

Does anyone know what , Allergic Reaction , Home remedy , Swelling , Allergy , Eating , X-Rays , Wouldn