Leukocytoclastic vasculitis

### 45 years old Muslim housewife got admitted with the complaints of joint pain for 2 & 1/2 years. Associated with generalised purpuric & non blanching rash for 3 days which is more on both lower limbs & upper limbs. H/o mild fever for last 3 days associated with oral ulcer. Known case of IHD, COPD & Hypothyroidism. What's your D/Dx ??? What's your Dx ??? What are the investigation that you will do ??? How will you treat the patient ???

2 yr and 6 month old male child with high grade continuous fever for 7 days with polyarticular arthritis, with body ache and tenderness of whole body, centrifugal blanching central blackened coalasing rash for 3 days. No organomegally, lymphadenopathy, active bleeding. soft palate normal and no sign of meningeal irritation painful severe tender progressive poly arthritis. vaccination uptodate chikungunia Ab -negative,widal test negative,CRP-33 mg/l,PBF-normochromic normocytic anemia with neutrophillic leukocytosis,no abnormal cell please help me dx and treat the pt

38yr female with erythematous skin rashes with mild tenderness and itching since 3 months. relived by medication temporarily. present only over the legs. associated with mild fever and tiredness. non DM AND HTN. ALL blood parameters are normal

10 years old male child. History of fever 10 days back, no other localising symptoms...treated with inj ceftriaxone amikacin and chloroquine in view of widal titre ah 1:320, developed rashes on lower limb on day 7 of presentation...fever resolved 2 days prior to rashes. Rashes developed on lower limbs and Non blanchable, non pruritic in nature. Child is normotensive and otherwise asymptomatic, cbc is wnl Diagnosis??

40y old male pt, symptoms of viral fever, such eruptions on 3rd day, paracetamol and cough syrup was prescribed, could it be drug related? what investigations are required?