Brief Answer:
Symptomatic treatment, paracetamol, decongestant, steam inhalation

Detailed Answer:
Hi
Welcome.
I have gone through your query.
I like to know few more information.
1. Since when you are facing this problem?
2. Do you have any other illness like blood pressure.

Common cold can cause this symptoms like equilibrium issue and dizzy spells.
Presently I would have treated you with Decongestant like (triprolidine 2.5 mg, phenylephrine 5 mg) thrice daily for 3 days. Kindly ask the local physician for prescription for similar agent at your place. In the interim, I would start you on decongestant nose drops to open the tubes. Instill 3 drops of otrivin in each nostril 3 times a day for 6 days and follow it up with steam inhalation with few drops of eucalyptus oil in it. Only steam inhalation can be done 3 to 4 times a day. Salt water gargaling two to three times a day. Drink lots of water especially warm water and stay away from air conditioned rooms. With this measures he should be fine.

Feeling dizzy when you stand up might also be due to low blood pressure, that need to be ruled out. Kindly get back to us with additional information.

This provisional advice provided by me is based entirely on the input provided to me. I would suggest examination by the doctor.

I hope this suggestion might be of some help to you.
Take care.

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