There are many reasons for painful biceps muscle. Please do add more details. More the details, more specific will be the dianosis. Proper advices/suggestions can only be provided after the diagnosis.
1.Is it a
sudden onset or it happened gradually
2.Did it occurred after any sternouus activity or gym workout.
3. Do you have pain at rest or only occurring during movements or certain activities.
Next Steps
Add more details or Consult a qualified Physiotherapist nearby
Health Tips
Give proper rest, apply ice over the area by gently massaging in small circles.
Consult a qualified physiotherapist nearby