Bactrim Side Effects (Page 3)
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I am curious if anyone else has had any of these side effects from taking bactrim. My mouth is so swollen with blisters all inside my mouth.....now it has started to affect my private area as well with same symptoms. I cant eat and it burns all day long. I only took 4 pills when this started. Please help if you can.

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Yep...blisters inside the mouth was one of many issues I had with the drug...could only last two days and my doctor said I was obviously allergic to this sulfa drug.

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Doxycyline hyclate is often a viable alternative for Bac trim. Much less side effects.

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Please, please, report your side effects of Bactrim to: fda.gov/Safety/MedWatch

They will call you for follow-up.

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I apologize, but if your doctor told you that blisters/lesions that occur around the onset of taking Bactrim, most likely, he is NOT a physician. Bactrim and other antibiotics (abx) can cause thrush in the mouth, caused by an overgrowth of yeast, b/c the abx not only destroy the bad flora, but also the good. I called my doc and told him I had thrush, so he called in meds for that, but the pain was not controlled. I made an apt, and when he saw my mouth, he said, "OMG, you must NEVER take Bactrim again. He said these "blisters" are actually burns. My mouth is covered, but the worst is under my tongue. I had a white flap of tissue (lesion) that would begin to slough off during the day. However, by the next morning, a new flap was back. The pain when that flap sloughed off was unbearable. My PCP said this was an allergic response that could have easily become an anaphylactic response. When you have swelling and lesions in your mouth, you have to know that your airway is right there. so pls don't tell anyone this is normal. Our body can repair itself, but if we're dead, it's too late. Hope this helps someone. Don't call your doc if you have blisters/lesions in your mouth. Make an appt.

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I was prescribed Bactrim DS 800/160 for a boil in my armpit. I've been on 2 bid for only 3 days. I developed a blistering rash and my legs and feet are swollen. Should I stop taking this?

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Oh gosh. BACTRIM!.. because of this drug, and the reaction being misdiagnosed, I was in the ER twice within 24 hours. Severe headache, heart skipping beats, throwing up, rash all over body, swollen and red face.......ER first thought it was sepsis because of the way I looked. I ended up having to wear a heart monitor for a month. I have never been through anything like this in my life and I am 66. Never been in the hospital, never had heart issues.....oh well, it has all resolved itself now but lets just say it wreaked havoc on my body. I can never take a sulfa drug again. And it is true, that the 2nd times is worse than the first. First time was on Christmas Day...broken out, etc. Came off it but 10 days later when in ER for heart stuff (caused by Bactrim) the Dr in ER didn't believe I was allergic to Bactrim so she gave it to me AGAIN.....and that's when the real fiasco began. The second reaction apparently played off the first. Why would I allow a Dr to give me Bactrim a second time? I was SO sick...in ER, couldn't hold my head up.....too sick to even think straight and bought into her reason why it couldn't be Bactrim. Too sick to think. Well, I was right, she was wrong. Took 6 months for everything to resolve itself.....allergist says no doubt about it, it is Bactrim. Thinking of seeing an attorney. Just saying...

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Hello ladies, I'm taking Bactrim because I have a diabetic ulcer. I have to take two for 10 days. The first two nights I woke up in the morning with severe very painful muscle spasms in my left leg. Then on the second night I woke up at about 3 a.m. to use the restroom and I was having very painful spasms in my arm. Then on the third day I woke up in the morning with a rash on my left arm (near the upper forearm closer to the elbow region) that was pink, round and similar to ringworm with blisters on it. It was very itchy and I didn't have any of these problems until I started taking the Bactrim. It can also alter your attitude and make you very short-tempered. It made me very irritable to the point where I did not want to be bothered by my children or my grandchildren. Because I've been diabetic and had this store on my leg for two years, my doctor kept telling me to put Bactrim ointment on it and it'll go away (without getting any kind of skin culture). It never went away. So I originally started taking Bactrim because I started to see a wound care specialist and she took a culture. Two days later my legion was tested+ for staph infection. She told me that everyone has staph in their body anyway but if your body's immune system is down from any kind of illness and you get cut, the little tiny thing can turn into a staph infection.

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I too took Bactrim and the tissue of my labia became painful, red & eventually peeled off. Stop taking it immediately!

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Took Bactrim 14 days....fever, chills, tongue covered in white and red bumps, layers of white bumps, extreme fatigue and left eye extremely red. I am on my third day of not taking it and my tongue is returning back to normal and I have not had a fever. I'm still feeling very weak.

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Took Bactrim 14 days....fever, chills, tongue covered in white and red bumps, layers if white bumps, extreme fatigue and left eye extremely red. I am on my third day of not taking it and my tongue is returning back to normal and I have not had a fever. I'm still feeling very weak.

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I started taking 800-160 mg of bactrim (which was prescribed by a PA at a walk-in clinic) due to swelling around my eye from a large zit on my forehead. Took one in the evening, woke up next morning with my throat feeling very tight, slight difficulty breathing and the worst headache I have ever had in my life. Went to work and eventually went home early because I felt like I had the flu as my body & head felt horrible...felt dizzy and like I was going throw up. I continued to take dosages into the next day but also drank a lot more water...it didn't help. The original side effects actually went away but then my throat become extremely sore and very hard to swallow food, later that next day I then found it almost impossible to urinate from extreme pain down there. Called my doctor the next day and was told to stop immediately, and consider myself allergic to bactrim....um, ok. Two days later, the pain in urinating is getting a little better but now my mouth has several open sores. I am wondering what will happen next as it has been 48 hours since I took my last dosage. Horrific drug, for me at least, and yes...the mouth sores came to me as well.

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how did you get rid of the sores? do they go away themselves?

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I recently reacted twice from the use of Bactrim so now I definitively know I'm allergic. I had the sore mouth and the painful vajayjay... The first time it was horrific and I ended up at the OB on emergency. The second time I took one dose of Bactrim and realized that this is the problem so I stopped immediately, unfortunately the pain didn't. I'm not a Dr but after 3 days of severe pain I was at the end of my rope and applied "Kanka" (mouth sore medicine) down there and let me tell ya I heard the angels sing! (Burns like a b**** at first). Praise the Lord the pain was gone and now I had some way to get rid of the pain. Again, I'm not a Dr, nor am I telling you to do this but it worked for me!

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Look up boullous drug eruptions. I have allergies to various medications. This (Bactrim) builds in your system. Each time you take it your reaction will likely get worse. My first experience it took 1 1/2 weeks for the blistering to begin. The second time it was within 12 hours. I called my PCP. He took it very seriously and told me to stop the medication immediately. It can cause sloughing of skin and then severe skin infections. Evidently he had seen some cases because he did not mess around with it at all. He immediately knew what I was talking about and put me on a different antibiotic and still followed up on me the next day! And yes ladies it is not in your imagination. I too had other lasting side effects as well. He will no longer prescribe sulfa drugs for me. Please just trust your instinct.....you know your own body better than anyone. Hope this helps.

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I took bactrim for a salivary infection. I have horrible mouth sores, my tongue is all swollen, and my gums are all inflamed. I stopped it at 9 days..... should have stopped way before. This is worse then the salivary infection.

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I just went through everything you stated as of last night. The doctors at the E.R. stated that I shouldn't take anymore of the Bactrim DS. I thought it was the combination of Toradal and the Bactrim DS that caused these symptoms. Hopefully we get through this quick cause I feel like crap!!!!

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Just curious because I am experiencing the same thing. Did the blisters on your genitals come all at once or over a period of a couple of days burst and leave open sores ? I'm worried about herpes but believe it is the Bactrim.

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I have the same reaction to Bactria. Now I just took Aleve and have the exact same condition!

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So glad to read I am not alone. I had a severe allergic reaction to bactrim after 3 days of taking it for a UTI. I became numb/tingling, shooting back pain, neck soreness, dizzy and blurred vision, rash- so I immediately stopped it. It has been four days since I took it and my vagina became extremely irritated/burning, migraines/dizzy, and extreme back pain still, stomach pain and cramping. I thought I still had the UTI but now it makes sense after reading this forum. I'm hoping someone knows how long these symptoms will take to heal? I'm actually very scared that the effects are so severe days after taking it. I don't want to take ANY antibiotic ever again after this experience!

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I started taking Bactrim a week ago about two-three days after I stared taking it I started itching all over and if I scratch it it would burn like I was on fire I was also having the same symptoms in my vagina I thought I was allergic to the detergent I was using and getting a yeast infection . Now the last two days it has gotten worse I have a rash in and on my vagina and burning sensation in and in my vagina. my period started today and when I inserted a tampon at first I was first I was fine then I had a burning sensation on my private. And my eyes are blood shot and I'm puffy around my eyes do you guys think this is all due to the Bactrim?

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