<human>: I have a cyst under my armpit. It protrudes approximately 1/2 inch from the skin and is approximately 1 inch across. It has been getting worse for about 5 days now and I went to see a doctor yesterday who prescribed an antibiotic. Today it is significantly more painful. Should I go back to the doctor or will the antibiotic run its course within a few days?
<bot>: Hello, Armpit lump may be due to cysts, infections or irritations caused by shaving or antiperspirants. There are various causes of armpit lump: Bacterial infections Viral infections Lipomas Allergic reactions Some cancerous conditions, etc. Usually it is harmless and as you mentioned you are taking antibiotics for the same, you can continue the antibiotic, and you can also take painkiller to alleviate the pain. And if the cyst increase in size or becomes more painful or pain radiates to any other site, you need to consult your doctor, otherwise it will be under control in four to five days. Hopes this helps you. Thank you.