Please can you tell me if mouth ulcers and pimples are a side effect of Giardia.  I was diagnosed with Guiardia about 3 months ago.  I was treated with Flagyl.  6 weeks ago I had a second outbreak, but milder.  I now have white pimples inside my upper lip and ulcers in several places.  My throat is also inflammed and there are a few spots on the back of my throat as well.
Hello dear, Thank you for your contact to Chat Doctor. I read and understand your concern. I am Chat Doctor answering your concern. No, pimple is not caused by the Guardian at all. But mouth ulcer can be caused by it. Giardia stick to the intestine lumen and suck the nutrition particularly fat and vitamins related to it. So ulcer can occur because of nutritional deficiency. You should take the complete treatment for the Guardian. Otherwise, it will recur and cause infection again and again. It is transmitted by Eco oral route means either the food or water is contaminated with such parasite is consumed by you causing the infection to you. I advise you should maintain hygiene in the future otherwise contaminated food causes infection again. In order to combat such effect you should take multivitamin particularly the vitamin A and others. This will help to treat the ulcer. I will be happy to answer your further concern on bit.ly/ Chat Doctor. Thank you, ChatDoctorInfectious diseases specialist, ChatDoctor.