You can take     as your problem are multiple only syp will not help.     better you  consult

Yes you can take But get an rt PCR test done also Also start with supplements and other home remedies

Yes u can take

You had not mention you are month of pregnancy since initial four months are very critical in pregnancy we should avoid almost any of the medication we have other medication which are proven hundred percent safe and can be used in pregnancy for cough and this allergic part kindly consult with you a detailed history for further guidance and prescription. As a full composition is compared this is usually avoided in pregnancy