Hi welcome to HCM,
As stated by you sneezing
and coughing was present earlier & it worsened today .There can be many possibilities all indicative of upper respiratory tract
infection ,you need to consult any physician for anti-bacterial therapy ,in interim you can use nasal drops& anti -histamines like levo-cetrizine
for relief of your symptoms .
Kindly ,avoid using any antibiotics without consent of your physician .Keep your self re-hydrated by taking liquids are regular intervals.
I, Hope ,i have answered your query ,