Respect Doctor's! Hope your doing well! I'm having nausea feeling for more than month, I vomited once which was normal and  clear. Pustules on body (on stomach there was  itching, rashes and pimples, pus filled pimples back of neck and shoulder and other parts repeatedly ) and stye for the  third time within 1 year on eyes which is currently there for more than 15 days this time, I took doxycycline for 3 days as it was causing sever gastric issues which was making eating and swallowing difficult and painful even after taking antacid, so I discontinued yesterday.Pain and swelling in distal phalanges index finger for the past 3 days.. What could be possible reason and any test required? I did CBC and master health check up 2 months ago, ESR WAS 44, and disc bulge in spine and  Dr said nothing to worry as others things were normal including uric acid and  creatinine. What could be the possibl reason and what should be done? Your valuable opinion will be highly appreciated. Thank you.