Ingrown hair most likely.
Symptoms can vary from person to person. Some people get dry chapped lips, some itching, burning and or tingling symptoms aroun their lips. Then a blister or pimple occurs on or around the lips which can break into a cold sore. The sore can take a few weeks to heal and scab over.
Under your armpit could be breast cancer. It is best you go see a doctor.
help im not sure
No, they will just have a very very sore arm.
No
it may have fleas/ticks so it may be itching that much it may be causing sores, i would take it to the vets
The sore knot is a lymph node. Its relation to your cycle suggests a chance of breast cancer. See a doctor and get a biopsy.
The initial symptom is a tingling or mildly painful itching sensation in the area where the sore will appear.
Symptoms commonly reported are headache, fatigue, weakness, difficulty concentrating, short-term memory loss, dizziness, irritability and depression, itching, numbness, burning sensation, congestion, sore throat
Most people experience burning, itching and or tingling symptoms around the lips; this can be minor to uncomfortable even pain full to the person with cold sores. Some people get a pimple that breaks into a cold sore, some people get an open paper cut like sore on their mouths.
If you get punched in the jaw then that can cause sore jaws
They start showing through shirts, itching, they're sore, or they jiggle.