Hi, thanks for using healthcare magic
It safest to travel during the second trimester of pregnancy
which starts from week 14 to week 26, during this time any form of travel, once comfortable, would be ok..At 3 mths your wife is almost in her second trimester.
In terms of the cold
, it would be best to use medications only if absolutely necessary, paracetamol
can be used if there is any sore throat
or joint pain.She can also use fluids and get as much rest as possible.
If the cold becomes intolerable , she can consult her doctor before taking any medication.
I hope this helps