Penicillin allergy ... anyone else? Help please .

I cannot take any of the penicillins, nor the cephalasproins ... so have always feared getting any sort of infection.

Last Friday I had a tooth extraction , a lower molar. All pretty straight forward, but I have the most awful jaw pain.

I've been back to the dentist who can see no reason for this pain. The socket is fine and healing nicely so not a dry socket. There's no swelling anywhere , gums all look fine.... but still I have this horrendous pain.

She says it could be that there is some degree of infection but the fact that there is no swelling means there probably isn't. She has recommended I rinse with Corsodyl mouthwash to help the healing and that the pain could be the trauma to the soft tissue area.

If the pain doesn't go away (which it hasn't) then I need some antibiotics.... and here's where I am now terrified as to what I could take.

I'm sure there must be many of you who are allergic as I am, so what can you take at these sort of times?

I feel ill with the worry and I know I must go back to see her again , but she seems to think there's nothing particularly wrong.