Lymph node on the left side on my neck swelled up and it swelled out of my inner side; This is a spontaneous report from a contactable consumer. The 23-year-old male consumer (patient) reported for himself that: A 23-year-old male  patient received single dose of bnt162b2 (BNT162B2, formulation: Solution for injection, Lot Number: FA7484 , Expiry date:unknown), via an intramuscular on 06Aug2021  for covid-19 immunisation. The patient medical history and concomitant medications were not reported. The patient experienced Lymph node on the left side on my neck swelled up and it swelled out of my inner side Lymphadenopathy(non-serious) on 06Aug2021. The patient had Action(s) taken with  doctor prescribed me or the hospital prescribed me Ibuprofen for my lymph nodes received the treatment.The patient underwent lab tests and procedures were not reported.The outcome of the events was unknown.   Additional information: The patient was reported about Reaction and event as reported by primary source: Lymph node on the left side on my neck swelled up and it swelled out of my inner side. The Drug(s) Information with Characterization of drug role: SUSPECT .The Proprietary medicinal product name: COVID-19 Vaccine. The Action(s) taken with drug received  treatment .The reporter was Consumer or other non health professional. The Dates for Lymph node on the left side on my neck swelled up and it swelled out of my inner side on 06Aug2021.The COVID-19 Vaccine was  Pfizer product and manufacturer by unspecified. The NDC number of COVID-19 Vaccine and UPC number of COVID-19 Vaccine were unknown. The Reason for no lot number: of COVID-19 Vaccine: Other: LOT No: Consumer stated his think it is FA7484.The patient  believe, so it is kind of hard for me to see the whole thing but I believe that's what it is or if it is not an F then I believe it's an E" .The Name of the vaccine: Consumer stated, "The  Pfizer BioNTech COVID-19 vaccine." The Consumer stated his got my first dose on the 06Aug2021 and later that day patient noticed my lymph node on the left side on my neck swelled up and it swelled out of my inner side and so patient went to the hospital on Monday during the night was told his should called and report side effects and I also would like to know if they can cause muscle spasm as well. The Consumer was also informed about Pfizer Medical Information department and offered the number. The Consumer was provided with the number of Pfizer Medical Information was requested to select option  timings as and 8 am to 8 pm Monday to Fridays. The Consumer was informed about the role of Pfizer Drug Safety and requested to probe. The  Consumer stated Lot no: FA7484, I believe so it is kind of hard for me to see the whole thing but I believe that's what it is or if it is not an F then I believe it's an E. The Date of administration of first dose: Consumer stated it's 06Aug2021 (06Aug2021). The Facility name: Consumer stated, "Here on the card it said but it is a  store I went to the pharmacy and got my (incomplete sentence).The patient Height: Consumer stated his height is 6 (feet) 1 or 2 (inches) in 187.96 cm. The  Treatment was  Consumer stated My doctor prescribed me or the hospital prescribed me Ibuprofen for my lymph nodes.  No follow-up attempts are possible. No further information is expected.  Follow-up (07Oct2021): This follow-up is being submitted to notify that the lot/batch number is not available despite the follow-up attempts made. Follow-up attempts completed. No further information is expected.