If you stop your treatment early, the infection could come back.If you forget to use metronidazole cream or gel, put it on as soon as you remember, unless it's nearly time for your next dose. tonyplake 30 Jul 2014. We comply with the HONcode standard for trustworthy health information - Talk to your pharmacist or doctor if you're worried.It's unusual to have side effects when using metronidazole cream or gel. How long does Metronidazole take to work? Also tell them if, at any time, you start to feel worse.Metronidazole doesn't stop any type of contraception from working, including the However, if metronidazole makes you vomit or have severe diarrhoea (6 to 8 watery poos in 24 hours) for more than 24 hours, your contraceptive pills may not protect you from pregnancy. These will tell you how to fill the applicator with gel and put it into your vagina. This allows the metronidazole to leave your body.Keep taking the medicine, but talk to your doctor or pharmacist if these side effects bother you or don't go away:Serious side effects are rare and happen in less than 1 in 1,000 people.If you suspect that you or someone else are showing signs of meningitis, or other problems related to the brain, speak to a doctor or go to your In rare cases, it's possible to have a serious allergic reaction You could be having a serious allergic reaction and may need immediate treatment in hospital.These are not all the side effects of metronidazole tablets, cream, gel, suppositories or vaginal gel. This gives the medicine time to leave your body.This is important because metronidazole can react with alcohol to cause a number of side effects. Check the list of ingredients or ask the supplier or manufacturer.For safety, tell your doctor or pharmacist if you're taking any other medicines, including herbal remedies, vitamins or supplements.Metronidazole is an antibiotic. You could also ask your pharmacist for advice on other ways to remember your medicines.Accidentally taking an extra dose of metronidazole is unlikely to harm you or your child.Speak to your pharmacist or doctor if you're worried or you take more than 1 extra dose.When metronidazole cream or gel is prescribed for rosacea, you'll normally use it twice a day for about 2 months. Thinking more about door handles, I just … After finishing your treatment, wait for 2 days before drinking alcohol again. Make sure you do not accidentally get it on your breasts. Do not use it more than twice a day unless your doctor tells you to. I had ate a meal & after an hour took the 4 pills as I was told to do. If you do get some in your eye, wash it out immediately with cold water.It's very important to keep using metronidazole cream or gel for as long as your doctor has prescribed it.Carry on using this medicine until you have finished the course, even if you feel better. If it wakes you up at night or you can’t even get to sleep, even with painkillers, the relentless pain begins to drive you insane. Follow the instructions from your doctor or pharmacist. Two hundred sixty-three women with vaginal trichomoniasis were treated. Most courses of metronidazole last for around 7 days, however some may be as brief as 3 days and some as long as 14 days. With serious swelling (including dental infections), the medicine will start working within a few days but it may take longer before your symptoms start to get better. Follow your doctor or pharmacist's instructions, and continue treatment until Metronidazole tablets, liquid and suppositories are prescribed for a number of infections, including pelvic inflammatory disease. Metronidazole tablets should be swallowed whole with a drink of water, after you've eaten some food.