Hello. I am new to Asthma Uk and have only joined this morning. I have a son aged 12 who is a very talented violinist. I believe he is developing an allergic, asthmatic reaction to violin rosin. Every time he practises recently he has to stop as he becomes tight chested. The problem is becoming more pronounced, I've realised as his new teacher insists on him using the full bow. In orchestra he seems to be one of the strongest players but I've been informed that he had to sit out a couple of times recently and take his inhaler. I am very concerned and wondered if anyone can advise. Thank you.