Mama, honestly better to check with your OB about Katinko or Vicks sa first tri kasi may ingredients na pwedeng risky for baby, maraming mums sa circle ko nag-avoid lang ng anything strong during that time to be safe. For sipon, try steam inhalation with hot water, lots of fluids, and rest muna, pero if it's really bugging you or lasting long, better ask your doctor what's safe to take na talaga, they can recommend something specifically for pregnancy. Marami kasing options na OB-approved, so don't worry, may solusyon yan!