Can u give head w a canker sore?

No. Mucosa (mucous membranes) and skin are far lass effective at preventing disease transmission if damaged (open cuts, cold sore blisters, etc). You and your partner are at greater risk of disease transmission if you engage in sexual activity during outbreaks.
Canker sores. Cancer sores or cold sores on the lips and face are usually caused by the herpes virus. During the active phase the virus is very contagious and care should be taken to avoid activities that could spread the virus to others or to other areas on your body. Touching the sore than casually rubbing your eye is probably the most serious complication. This can spread the virus to the eye..

Related Questions

Should I refrain from giving oral sex if I have a canker sore in my mouth?

Canker Sore is Ulcer. A canker sore is also known as an aphthous ulcer. Since an ulcer is a break in the mucous membrane that is a barrier for invasion from bacteria, yeast and virus, it would seem advisable to reframe from oral activities that might lead to picking up an infection. Read more...
Yes. Yes, any sore in the mouth is a perfect avenue to transmit an std. The activity of oral sex could also aggravate the ulcer. Read more...
Play it safe. Apthous-type ulcers are more benign but the previous answer provides warning about the spread of a virally produced lesion. Be safe...Since you dont know which you are dealing with, refrain. Read more...

If you have a canker sore in your mouth and you give someone oral is it contagious to them?

Unlikely. I have never heard of a canker sore being transmitted from one person to another. Read more...
Don't do it. Yes yes yes!, viral and bacterial sores in your mouth are very contagious so take a break from any oral contact with others. Read more...

I got a canker sore because I bit myself. Is it still bad to give oral sex since I got the canker sore when I accidentally bit my lip while eating?

Oral lesion. If you have an open wound, you are more at risk of contracting an STD. As for the sore, is this something you get frequently? If it's herpes labialis (blisters on the lip) you could give it to your partner. If it's a sore inside the mouth it is probably an aphthous ulcer or traumatic injury and is not contagious. Read more...

Had what looked like a canker sore/white head directly on bottom lip. Popped it and it went away. Not a cold sore. Usually get with chapped lips.?

See your dentist. see your dentist. You may have had an aphthous ulcer which is very similiar and not a cold sore. It appears on soft muscosal tissue and lasts for 3-7 days. It appears from stress and iatrogenic; unknown causes. It disappears usually after 7 days but, it is red and painful. Viscous Lidocaine rinses and Lidex (fluocinonide) cream topically applied to the area help. Read more...

White head directly on bottom lip. Not a blister. White not yellow. Comes when lips get chapped. Looks like canker sore but on outside of lip.

Cannot say. without seeing it BUT: boils/pimples are on the outside. Herpes/coldsores are on the outside (but go away in a week and boils/pimples probalby won't). Read more...
See provider. Please consider seeing your health care provider to assess if the lesion needs medical treatment or surgical removal. Read more...