I was taking an antibiotic last month that the Dr. said might make me ill. I was passing blood. I felt awful for 7 of the 10 days I was on it. It worked but my poor stomach has never been so upset. I had to stop at one point eat a baked potato for dinner then again the next morning before I took the pill. This delayed how long I was on it as I was supposed to have a pill in the morning and at night, but helped me get through it. I wouldn’t recommend staying on an antibiotic if you pass blood. I hadn’t eaten solid food for five weeks prior due to oral surgery and felt a little desperate for relief from a dry socket infection.

DH had a rash reaction from penicillin as a child. He hasn't taken anything from that family of drugs again to know is he's still allergic. He 'outgrew' a couple of other childhood allergies, but this hasn't been one there has been any reason for him to try again. I think he's taken an antibiotic twice in the last 4 decades, both times for bronchitis.

That doesn't sound fun Sabbath. All we were told was to take a probiotic with this new antibiotic. Maybe that is what you needed to. I made the mistake of "reviewing" the antibiotic and read all kinds of scary side effects people had.

My sister in law had a reaction to penicillin too...BAD rash/hives itching. The doctors always ask "are you allergic to any medications" but neither of my kids have had to take any so we don't know.

Me! ME! I've had reactions to all sorts of antibiotics. I have a specialist (so good, she has a podcast about allergic reactions on a well regarded medial publication's website. I was interviewed). The reactions go away once you quit taking the medications. Some are scarier than others. Penicillin and its ilk are my worst enemies. I've had trouble breathing, red eyes, red skin, head to toe rashes that itched beyond belief. It goes away. Just take an antihistamine until the symptoms clear up.

I have learned one thing about all this stuff. Not all reactions can be called "allergic" reactions. As a matter of fact, most are just "reactions". I've learned to say I'm allergic to wasp stings, but have reactions to medications. That's a medical distinction.

Get well!

My daughter had a reaction to an antibiotic that she was taking and came down with hives, she was miserable to be sick and then get hives on top of that.

I also have had reactions to antibiotics. Penicillin has never bothered me but -mycin drugs give me a rash (mild) to hives (much more serious.) Hives are worse, and swelling in the throat can be fatal. Don't take a single more pill! And keep a list of whatever gives you a reaction and carry with you, for emergencies.

I get an anaphylactic reaction to Penicillin. The Sulfa based antibiotics give me a rash and make me itchy, but I can breathe, so that's what I usually get.

Any sort of morphine based pain medication makes me so depressed that it's dangerous, so I hope I never need any of those, otherwise I'll also be on an antidepressant.

When I was younger and acne was an issue, I wouldn't take it orally but had the doc prescribe a suspension which I could then use a cotton ball with and apply it to my skin. Much safer than taking oral antibiotics which can have many effects on the body ...good and ill.

Yes. There are several I can not take. Penicillin and Sulfa based are two that cause me problems. Some of the "myacins" also cause me to get a rash.

Please be aware that there is a BIG difference between an "adverse" reaction to a drug and a true "allergic" reaction. The later may quickly become anaphylactic shock and it can quickly cause death. This is the kind of reaction people have who carry Epi-pens. An "adverse" reaction can be many things - the insert with the drug will tell you what these are.

Be sure that he remembers the name of the drug which caused the reaction because he will need to tell future medical personnel that he has had a reaction to this drug. Adverse reactions can becomes stronger with repeated exposure to the allergen.

I can't take Cypro (ciprofloxacin...sp?). It about killed me and caused my IBS-D which took years to get under control. I also can't take sulpha drugs or codeine. These are listed on all of my medical records. Also the cholesterol lowering drugs Lipitor or Zetia...."severe" cramps.

Would I let the pharmacy know my son had a reaction to that antibiotic? I'm not sure if they have a way of keeping info like that or not. I'll check with them when I pick up the new antibiotic.

Years ago, after a long treatment with penicillin (due to strep infection), I went into anaphylactic shock. I spent almost two weeks in the hospital (in critical condition for the first few days), and can never take penicillin or any derivative again. I am also allergic to sulfa and codeine.

A few years ago, Stan was given an antibiotic (Keflex) and almost died from it. I had to call an ambulance, and he was in intensive care for 4 days. He had a flu shot in 2011, and three hours later, he collapsed. The paramedics thought he was having a major stroke and were not sure he would make it to the hospital. He spent almost a week in the hospital, and was advised against taking flu shots in the future. Scary times.

Sometimes it may not be the drug that is causing the problem but the way it is apparently manufactured. Erythromycin with a red coating caused a reaction where my face swelled. Without the red coating I am fine.

always only because it happened to me could your son have measles? Back in my teens the doctors thought I was having a reaction to tetracycline and put me in the hospital. Next day the rash was all over my body. I had had the long form of measles when I was younger and should not of had them the second time.

Because I have problems with my stomach although the bottles state do not take food before or after my doctor always insists that I take them with a full stomach. I remember doubling up with stomach cramps before my doctor insisted I do this. I seldom do to the doctor except for the twice a year checkup. Once to have my three scripts renewed and the second because he insists.

Things with Sulfa make me itch like I am more nutso than usual.

There is a particular antibiotic I'm unable to take due to several side effects which include feeling out of sorts.......anxious and irritable.

I can't take penicillin or related drugs due to SOB and hives.

Cipro and Zyvoxx caused nerve damage due to oto-toxicity.

Most everyone today has a smart phone, and these phones often have a "Notes" app on them. I keep ALL my prescriptions in the notes - dosage etc. And I have a separate file for all my allergies/adverse reactions. It makes it very easy at the doctor's office.

Always1step, absolutely tell your pharmacist that he was allergic to the clindamycin; most do keep records of allergies. Be sure to tell him it was a rash; what kind of allergic reaction can be very helpful to know.

I am allergic to the substance that is the second ingredient in Bactrim (also known as Septra) called trimethoprim. I get a peculiar rash on the corners of my mouth, eyes and nose. When I am at a new place that asks my allergies, nearly always the person taking the information doesn't know what that drug is -- and if I say, it is in Bactrim, they will put down that my allergy is to sulfa -- which is the other ingredient in Bactrim and I am not allergic to it. Can't tell you how many times I've had to correct this.

My mother couldn’t use penicillin as it gave her terrible hives.

I get really bad strep throat from time to time. I go from feeling fine to almost unable to swallow in about 30 minutes- that’s how I know it isn’t an ordinary sore throat. If I get antibiotics immediately I’m fine, if not I’ll be in bed for a week or even the hospital.

So, DH and I were driving to the airport when “the throat” started. There was no way I was going to get antibiotics from a doctor in time. We were stopping at DD’s as she was taking our car to the airport to drop us off, and I raided her medicine cabinet and found some Clarithromycin which I took and cleared up the throat. But a day later I got this really itchy rash on my forearms. I thought it was caused by my coming into contact with a plant in DD’s garden which is known to cause such rashes. We called into a pharmacy overseas and the (non English speaking) pharmacist proffered some cream. I read the information leaflet to discover it was a cream for genital herpes! So I asked for something else, and the rash cleared up.

A couple of years later, a doctor prescribed Clarithromycin again. Again I got the rash and, as I was staying with DD, again concluded it was the plant. But a week later the rash was getting worse and I hadn’t been exposed to the plant for days. So I went to a local pharmacy and asked if there were any adverse reactions to Clarithromycin. Lo and behold, a rash was one of the most common ones. So now I avoid Clarithromycin :-)

A very long time ago I had a couple of different surgeries, and was given rounds of penicillin, probably as a preventative as I don't remember any signs of any kind of infection. Eventually I started getting a very itchy rash, and my doctor decided I had developed an allergy to the penicillin. I've never taken any since, but there are a few other antibiotics that will cause that same itchy rash. I think I am very fortunate that it was just a rash, and not a severe reaction.

I've since developed a similar reaction to any and all things containing sulfa. Even down to the Sulphur Dioxide used in preserving commercial dried fruit! Have you any idea how hard it is to find dried fruit that has not been treated with some sort of Sulphur?

Rusty