It all depends on you. Different people are affected differently. I'm Ok with it, but I'm an ex-diver so my tubes are stretched from that and I've mastered my clearing technique. If it's not too bad you could fly and limit descent rates to avoid ear squeeze. Risk there is if you have an emergency and have to descend rapidly you might blow out an eardrum, which would further complicate the emergency to say the least.
Blown eardrum (s) vary in severity. Best case, it heals on it's own with no loss of hearing. It might require surgery to heal properly. Worst case the inner-ear structures are damaged as well, which might heal to some degree but is not surgically correctable. The later would result in loss of hearing, probably severe loss.