Hi! Good evening. I am Dr Shareef answering your query. From the history of pain in the lump, it seems to be an inflammatory swelling, which could have been due to fiddling of a pimple, or an insect bite which possibly might have gone unnoticed by you. If this was the case, then I would prescribe you with a broad spectrum anti biotic and an anti inflammatory drug for this problem. However, a clinical assessment would be appropriate before starting any treatment, and so I would advise you to get appointment with your family physician or a general surgeon in your area for further assessment and management of the problem. I hope this information would help you in discussing with your family physician/treating doctor in further management of your problem. Please do not hesitate to ask in case of any further doubts. Thanks for choosing health care magic to clear doubts on your health problems. I wish you an early recovery. Dr Shareef.