Hello, Few more details would be necessary like age! However on a general rule if there's cold/cough/fever avoid direct flow of water, sponging will be advisable. Coming to swimming pool possibility, it would again depend on the circumstances & health of an individual, for precaution avoid it. Future is unpredictable & medicine can't stop all the things which may happen as an exciting influence so there may not always be a Medicine which will prevent occurrence. Hope this helps. For best results & precautionary measures please see a Homoeopath in person. Thank you!

Hello. Bathing with lukewarm water is fine.  Avoid swimming till recovery from complaints.  For homoeopathic treatment consult your doctor personally. Regards