Thanks for posting your query.
The recurrent pus spots can be due to herpes simplex
or an eruption of acne
The swelling in neck seems due to lymph
node enlargement in neck secondary to the pus points on the face and not due to hypothyroid state.
If possible you should post a fresh query to me with a photograph of the eruption so that I can fine tune the opinion and advise more suitably.
Hope I have answered your query.
If you have any questions I will be happy to answer.
Please close the query if you have no other questions.
Wish you a good health.