I have a sore thorat with a yellow blister can it be strep throat?

Possibly. A sore throat with a yellow blister type lesion could be strep, other bacteria, a viral infection, or tonsillolith (tonsil stone). Hard to say. If it hurts badly or doesn't go away in a couple of days, get it checked out.
Possibly. It could be a strep throat or a sore throat due to a virus or other bacteria. The yellow blister is likely a tonsil cyst or a collection of infected debris in the tonsil crypt.
Possibly. Depending on the location of the blister, it could be a viral infection or possibly streptococcus infection. The most appropriate way of determining this is with a proper throat culture or a so-called rapid strep test. If it is truly a fluid filled blister, my best bet is a viral infection of the herpes family of viruses. Blood blisters deep in the ear canal are notoriously of viral origin.

Related Questions

Why do I still have yellow mucus, sore throat and productive cough 2 weeks after given amoxicillin for strep throat?

Stept throat. The most likely thing is that you did not have strept throat unless a culture was done. It is was a strept throat You probably have a viral problem that takes bout 2-3 weeks to get better if you take antibiotics or 13-21 days if you don't. Have others at your work/school had similar problems? Good discussion at Wikipedia for more info. Amox is not drug of choice in US.

Could a sore throat turn into strep throat?

Yes. Gargle with listerine without alcohol several times per day. Use a saline nose spray. If not better in a few days see your doctor.
Of course. If it happens, it's important to treat strep throat. See your PCP for consultation and tests.

How to know if a sore throat is strep throat?

Throat culture. A swab of the throat and testing is the only way to be sure. Most sore throats are not strep.
Have evaluated. You are still be in an age group where untreated strep can produce rheumatic fever a month or so down the road & make the rest ur life miserable. (& cost a bunch) est.1/200 untreated strep are at risk; ~1/3 sore throats strep, ~1/600 the risk you take by the numbers. Most urgent care centers or offices can do a quick test & see if it is strep.

I need to know if I have just a sore throat or strep throat.?

Have evaluated. You are still be in an age group where untreated strep can produce rheumatic fever a month or so down the road & make the rest ur life miserable. (& cost a bunch) est.1/200 untreated strep are at risk; ~1/3 sore throats strep, ~1/600 the risk you take by the numbers. Most urgent care centers or offices can do a quick test & see if it is strep.
Has to be seen and. Rapid strep test has to be performed to differentiate one or the other.

How to determine whether you have strep throat or sore throat?

Strep test & culture. Your dr can odor tests to determine if your sore throat is due to a strep infection. Sxs of strep throat can include: large, red painful tonsils with white exudates; small red dots on the roof of the mouth; swollen lymph nodes on the neck; fever, headache, rash, difficulty swallowing, fatigue & rash.

How to know if I have strep throat or just a sore throat?

Two issues. Tonsillitis is a nonspecific term designating the tonsils as inflamed ; may occur with many germs including strep. Strep throat indicates a specific agent streptococcus group a which is easily confirmed with a quick test or culture. While viral tonsillitis requires no abx ; will self heal, strep needs rx to prevent complications ; prevent spread within the community.

I always have a low fever today I have 99.7, sore throat, cough, congestion, achy. I'm a 55 year old female. Could this be strep throat?

Viral syndrome. I can only be really sure if you have a strep infection after a throat culture is resulted, but your set of symptoms is far more consistent with a viral infection than a strep infection.