My son has started Primaxin IV last Tuesday. The last couple of days, he has been much worse and I think he is having a herx.

I know if you are taking oral antibiotics and have a herx, Dr. C suggests stopping for a couple of days.

Does anyone know if taking an antibiotic break applies to IV, too? I will call his doctor tomorrow but just wanted to know if anyone has experience with this.

I was on IV Primaxin last year.I did hit bottom,big time herxing.I did go off of this for awhile,until I felt better.I suffer from terrible headaches and this sent them into overdrive...big time,plus it was my first IV abx.Yes,much worse than oral,for me at least,big leagues.

I did flush the line everyday while off IV,very important.

Yes,call the doc.I think I did a couple of holidays(off meds,),I am a light weight and they punched me pretty hard,so a holiday was my secret in holding my own and being able to continue.

After the 1st week on IV, I had such bad head pressure I was unable to think or to be out of bed for more than a few hours a day. That lasted 6 days, and I was about to call Dr C to ask if I should not infuse for a day or 2, then had a couple of days of relief. I thought this meant herx was over, so didn't call Dr C.

Then Friday and Saturday the head pressure and exhaustion were bad again, but then Sunday, it lifted again. So I haven't called to ask, and I did not have to stop infusing.

How is your son? Did Dr C have him stop the infusions, or has the herx ended on its own as mine did?

Jake stopped his IV on Monday and today. He will start again tomorrow with 3 doses per day but only take 1/2 of the dose.

------------------